Release v0.1.5 2026-07-12

AGENTS.md

@@ -96,17 +96,24 @@ Stable locked 60 FPS is a release requirement, not a best-effort goal.
 - Verify the changed code and its direct dependencies. Do not run tests, visual QA, or controller checks for unrelated screens or systems by default.
 - For a screen change, check that screen's applicable display layouts, browser fallback, and controller path only.
 - For a reusable mechanic or domain change, run its focused tests plus direct consumers affected by the change.
+- Run viewport, display-layout, and browser-fallback testing only when a change adds or modifies a screen, menu, modal, HUD, overlay, or other UI/layout behavior.
+- Combat rules, encounter mechanics, world-space telegraphs, animations, VFX, tuning, and other gameplay-only changes do not require viewport testing unless they also change UI or screen layout.
 - Expand to broader regression or full-suite verification only for shared foundations, cross-cutting changes, risky refactors, release validation, or when explicitly requested.
 - State what was verified and any deliberately unverified scope in the handoff.
 
 ## Definition of done
 
-A screen or mechanic is not complete until:
+A screen or UI change is not complete until:
 
 1. Its main-display UI is designed and verified at the approximately `960 x 540` Android CSS/layout viewport, with rendering validated against the `1920 x 1080` physical panel.
 2. Its applicable secondary UI is designed and verified at the approximately `620 x 540` Android CSS/layout viewport, with rendering validated against the `1240 x 1080` physical panel.
 3. It has a complete single-display browser fallback.
 4. Every action is reachable and understandable using only a controller, with no click-to-focus step.
-5. Shared game logic is modular, typed, and testable outside the renderer/UI.
-6. It introduces no known resource leak, unbounded work, or avoidable hot-path allocation.
-7. Representative Thor hardware sustains the locked 60 FPS target, or the change includes measured evidence and an explicit approved exception.
+
+Every code change is not complete until:
+
+1. Shared game logic is modular, typed, and testable outside the renderer/UI.
+2. It introduces no known resource leak, unbounded work, or avoidable hot-path allocation.
+3. Representative Thor hardware sustains the locked 60 FPS target, or the change includes measured evidence and an explicit approved exception.
+
+Gameplay-only mechanic and domain changes do not inherit the screen/UI viewport requirements above.

package.json

@@ -1,7 +1,7 @@
 {
   "name": "i-want-to-heal",
   "private": true,
-  "version": "0.1.4",
+  "version": "0.1.5",
   "type": "module",
   "scripts": {
     "dev": "vite --host 0.0.0.0",

src/components/BottomScreen.tsx

@@ -2,6 +2,7 @@ import { ABILITY_ORDER } from "../game/data";
 import { HEALER_CLASSES } from "../game/healers";
 import { BOSS_DEFINITIONS } from "../game/bossCatalog";
 import { GLOBAL_COOLDOWN_SECONDS, abilityRemaining, barrierProtects, upcomingEncounterMechanic, useGameStore } from "../game/store";
+import { runAbilityCastTime, runAbilityCooldown, runAbilityManaCost } from "../game/roguelike";
 import { PARTY_ABILITY_NAMES, tankAuraProtects } from "../game/partyCombat";
 import type { BottomTab, PartyMember } from "../game/types";
 import { useFrontendStore } from "../frontend/store";
@@ -85,12 +86,16 @@ function AbilityButton({ abilityId }: { abilityId: (typeof ABILITY_ORDER)[number
   const selected = useGameStore((state) => state.party.find((member) => member.id === state.selectedMemberId)!);
   const activeCast = useGameStore((state) => state.activeCast);
   const castAbility = useGameStore((state) => state.castAbility);
+  const runModifiers = useGameStore((state) => state.runModifiers);
   const remaining = abilityRemaining(abilityId, time, cooldowns);
+  const manaCost = runAbilityManaCost(abilityId, ability.mana, runModifiers);
+  const castTime = ability.castTime ? runAbilityCastTime(abilityId, ability.castTime, runModifiers) : 0;
+  const cooldownDuration = runAbilityCooldown(abilityId, ability.cooldown, runModifiers);
   const globalRemaining = Math.max(0, globalCooldownUntil - time);
   const noDispel = abilityId === "purify" && selected.debuffs.length === 0;
   const invalidTarget = ability.targeting === "ally" && selected.hp <= 0;
-  const disabled = phase !== "combat" || activeCast !== null || remaining > 0 || globalRemaining > 0 || mana < ability.mana || noDispel || invalidTarget;
-  const resourceCopy = `${ability.mana ? `${ability.mana} mana` : "free"}${ability.castTime ? ` · ${ability.castTime.toFixed(1)}s` : ""}`;
+  const disabled = phase !== "combat" || activeCast !== null || remaining > 0 || globalRemaining > 0 || mana < manaCost || noDispel || invalidTarget;
+  const resourceCopy = `${manaCost ? `${manaCost} mana` : "free"}${castTime ? ` · ${castTime.toFixed(1)}s` : ""}`;
 
   return (
     <button
@@ -106,7 +111,7 @@ function AbilityButton({ abilityId }: { abilityId: (typeof ABILITY_ORDER)[number
       <span className="ability-copy"><strong>{ability.shortName}</strong><small>{resourceCopy}</small></span>
       <span className="ability-pad">{ability.gamepad}</span>
       {remaining > 0 && (
-        <span className="cooldown-mask" style={{ "--cooldown-progress": Math.min(1, remaining / ability.cooldown) } as React.CSSProperties}>
+        <span className="cooldown-mask" style={{ "--cooldown-progress": Math.min(1, remaining / cooldownDuration) } as React.CSSProperties}>
           <b>{remaining < 1 ? remaining.toFixed(1) : Math.ceil(remaining)}</b>
         </span>
       )}

src/components/BuffDraftPanel.tsx

@@ -1,14 +1,19 @@
-import { RUN_BUFFS, bossHealthMultiplier, countRunBuff } from "../game/roguelike";
+import { RUN_BUFFS, bossHealthMultiplier, effectiveRunBuffRank, formatRunBuffEffect } from "../game/roguelike";
+import { HEALER_CLASSES } from "../game/healers";
 import { useGameStore } from "../game/store";
 
 export function BuffDraftPanel({ className = "" }: { className?: string }) {
   const round = useGameStore((state) => state.round);
-  const runBuffs = useGameStore((state) => state.runBuffs);
+  const healerClassId = useGameStore((state) => state.healerClassId);
+  const runBuffRanks = useGameStore((state) => state.runBuffRanks);
+  const passiveRunBuffId = useGameStore((state) => state.passiveRunBuffId);
   const choices = useGameStore((state) => state.draftBuffIds);
   const selected = useGameStore((state) => state.selectedRunBuffId);
   const setSelected = useGameStore((state) => state.setSelectedRunBuff);
   const choose = useGameStore((state) => state.chooseRunBuff);
+  const continueRun = useGameStore((state) => state.continueRoguelikeRound);
   const nextRound = round + 1;
+  const abilities = HEALER_CLASSES[healerClassId].abilities;
   return (
     <div className={`buff-draft ${className}`.trim()} role="dialog" aria-modal="true" aria-label={`Choose a buff for round ${nextRound}`}>
       <header>
@@ -16,10 +21,12 @@ export function BuffDraftPanel({ className = "" }: { className?: string }) {
         <h2>Choose one blessing</h2>
         <p>Claim required. Round {nextRound} begins with two new bosses at {Math.round(bossHealthMultiplier(nextRound) * 100)}% base HP.</p>
       </header>
-      <div className="buff-choice-grid">
-        {choices.map((buffId) => {
+      <div className={`buff-choice-grid choice-count-${choices.length}`}>
+        {choices.length > 0 ? choices.map((buffId) => {
           const buff = RUN_BUFFS[buffId];
-          const stacks = countRunBuff(runBuffs, buffId);
+          const rank = effectiveRunBuffRank(runBuffRanks, buffId, passiveRunBuffId);
+          const nextRank = Math.min(buff.maxRank, rank + 1);
+          const ability = abilities[buff.abilityId];
           return (
             <button
               key={buffId}
@@ -31,14 +38,21 @@ export function BuffDraftPanel({ className = "" }: { className?: string }) {
               aria-pressed={selected === buffId}
             >
               <i>{buff.icon}</i>
-              <span><small>{stacks ? `${stacks} owned` : "New blessing"}</small><strong>{buff.name}</strong></span>
-              <b>{buff.summary}</b>
+              <span><small>{rank ? `Rank ${rank} → ${nextRank} / ${buff.maxRank}` : `New blessing · Rank 1 / ${buff.maxRank}`}</small><strong>{ability.shortName}: {buff.name}</strong></span>
+              <b>{formatRunBuffEffect(buffId, nextRank)}</b>
               <p>{buff.detail}</p>
             </button>
           );
-        })}
+        }) : (
+          <button className="buff-mastery-continue is-controller-focused" onClick={continueRun}>
+            <i>✦</i>
+            <span><small>Full mastery</small><strong>Continue Without Buff</strong></span>
+            <b>All 18 blessings reached maximum rank.</b>
+            <p>Keep completed build and begin next randomized encounter.</p>
+          </button>
+        )}
       </div>
-      <footer><b>← / →</b> Choose <i /> <b>A / ENTER</b> Claim</footer>
+      <footer>{choices.length > 0 && <><b>← / →</b> Choose <i /></>} <b>A / ENTER</b> {choices.length > 0 ? "Claim" : "Continue"}</footer>
     </div>
   );
 }

src/components/FrontEnd.tsx

@@ -5,9 +5,11 @@ import { useActiveHunter, useFrontendStore } from "../frontend/store";
 import type { GameModeId, SaveSlotId, SaveSlotState } from "../frontend/types";
 import { useMenuController, type MenuAction } from "../input/useMenuController";
 import { HEALER_CLASSES, HEALER_CLASS_ORDER } from "../game/healers";
-import { AVAILABLE_BOSS_IDS, BOSS_DEFINITIONS, BOSS_GROUP_BY_ID } from "../game/bossCatalog";
-import { selectRandomBossPair } from "../game/roguelike";
-import type { BossId } from "../game/types";
+import { ABILITY_ORDER } from "../game/data";
+import { BOSS_DEFINITIONS, BOSS_GROUP_BY_ID, BOSS_GROUPS } from "../game/bossCatalog";
+import { bossMechanicIsPassive, bossMechanicName } from "../game/bosses/mechanicPool";
+import { RUN_BUFFS, formatRunBuffEffect, selectRandomBossPair } from "../game/roguelike";
+import type { AbilityId, BossId } from "../game/types";
 import {
   GEAR_OWNER_LABELS,
   GEAR_OWNER_ORDER,
@@ -483,10 +485,14 @@ function GearScreen() {
   const selectedSlotId = useFrontendStore((state) => state.selectedGearSlotId);
   const workshopMode = useFrontendStore((state) => state.gearWorkshopMode);
   const selectedInfusionId = useFrontendStore((state) => state.selectedInfusionId);
+  const selectedPassiveAbilityId = useFrontendStore((state) => state.selectedPassiveAbilityId);
+  const selectedPassiveInfusionId = useFrontendStore((state) => state.selectedPassiveInfusionId);
   const selectOwner = useFrontendStore((state) => state.selectGearOwner);
   const selectSlot = useFrontendStore((state) => state.selectGearSlot);
   const selectWorkshopMode = useFrontendStore((state) => state.selectGearWorkshopMode);
   const selectInfusion = useFrontendStore((state) => state.selectInfusion);
+  const selectPassiveAbility = useFrontendStore((state) => state.selectPassiveAbility);
+  const selectPassiveInfusion = useFrontendStore((state) => state.selectPassiveInfusion);
   const upgrade = useFrontendStore((state) => state.upgradeSelectedGear);
   const installInfusion = useFrontendStore((state) => state.equipSelectedInfusion);
   const installPassive = useFrontendStore((state) => state.equipPassiveInfusion);
@@ -503,6 +509,10 @@ function GearScreen() {
   const canInstallInfusion = Boolean(hunter && activeUnlocked && anchorUnlocked && !infusionEquipped && canAffordGearUpgrade(hunter.materials, selectedInfusionCosts));
   const passiveUnlocked = Boolean(hunter && passiveInfusionUnlocked(hunter.gearProgress));
   const healerOwner = selectedOwnerId === "priest" || selectedOwnerId === "druid" || selectedOwnerId === "shaman";
+  const passiveHealerClassId = selectedOwnerId === "priest" || selectedOwnerId === "druid" || selectedOwnerId === "shaman" ? selectedOwnerId : "priest";
+  const passiveChoices = PASSIVE_INFUSIONS.filter((passive) => passive.abilityId === selectedPassiveAbilityId);
+  const selectedPassive = RUN_BUFFS[selectedPassiveInfusionId];
+  const healerAbilities = HEALER_CLASSES[passiveHealerClassId].abilities;
   const previewEntryId = workshopMode === "upgrade" ? "upgrade" : `infusion-${infusionChoices[0].id}`;
   const actions = useMemo<MenuAction[]>(() => [
     ...GEAR_OWNER_ORDER.map((ownerId, index) => ({
@@ -518,7 +528,7 @@ function GearScreen() {
       id: `slot-${slotId}`,
       run: () => selectSlot(slotId),
       neighbors: {
-        up: index === 0 ? "back" : `slot-${GEAR_SLOT_ORDER[index - 1]}`,
+        up: index === 0 ? "workshop-upgrade" : `slot-${GEAR_SLOT_ORDER[index - 1]}`,
         down: index === GEAR_SLOT_ORDER.length - 1 ? previewEntryId : `slot-${GEAR_SLOT_ORDER[index + 1]}`,
         left: `owner-${selectedOwnerId}`,
         right: previewEntryId,
@@ -531,25 +541,42 @@ function GearScreen() {
       run: () => selectInfusion(infusion.id),
       neighbors: {
         up: index === 0 ? "workshop-infusion" : `infusion-${infusionChoices[index - 1].id}`,
-        down: index === infusionChoices.length - 1 ? (healerOwner ? `passive-${PASSIVE_INFUSIONS[0].id}` : "install-infusion") : `infusion-${infusionChoices[index + 1].id}`,
+        down: index === infusionChoices.length - 1 ? (healerOwner ? `passive-ability-${selectedPassiveAbilityId}` : "install-infusion") : `infusion-${infusionChoices[index + 1].id}`,
         left: `slot-${selectedSlotId}`,
+        right: index === infusionChoices.length - 1 ? "install-infusion" : undefined,
       },
     })),
-    ...(healerOwner ? PASSIVE_INFUSIONS.map((passive, index) => ({
+    ...(healerOwner ? ABILITY_ORDER.map((abilityId, index) => ({
+      id: `passive-ability-${abilityId}`,
+      run: () => selectPassiveAbility(abilityId),
+      neighbors: {
+        up: index < 3 ? `infusion-${infusionChoices[infusionChoices.length - 1].id}` : `passive-ability-${ABILITY_ORDER[index - 3]}`,
+        down: index < 3
+          ? `passive-ability-${ABILITY_ORDER[index + 3]}`
+          : `passive-${passiveChoices[Math.min(index - 3, passiveChoices.length - 1)].id}`,
+        left: index % 3 > 0 ? `passive-ability-${ABILITY_ORDER[index - 1]}` : `slot-${selectedSlotId}`,
+        right: index % 3 < 2 ? `passive-ability-${ABILITY_ORDER[index + 1]}` : undefined,
+      },
+    })) : []),
+    ...(healerOwner ? passiveChoices.map((passive, index) => ({
       id: `passive-${passive.id}`,
-      run: () => installPassive(passive.id),
+      run: () => {
+        selectPassiveInfusion(passive.id);
+        installPassive(passive.id);
+      },
       enabled: passiveUnlocked,
       neighbors: {
-        up: index === 0 ? `infusion-${infusionChoices[infusionChoices.length - 1].id}` : `passive-${PASSIVE_INFUSIONS[index - 1].id}`,
-        down: index === PASSIVE_INFUSIONS.length - 1 ? "install-infusion" : `passive-${PASSIVE_INFUSIONS[index + 1].id}`,
+        up: index === 0 ? `passive-ability-${selectedPassiveAbilityId}` : `passive-${passiveChoices[index - 1].id}`,
+        down: index === passiveChoices.length - 1 ? `passive-ability-${selectedPassiveAbilityId}` : `passive-${passiveChoices[index + 1].id}`,
         left: `slot-${selectedSlotId}`,
       },
     })) : []),
     { id: "upgrade", run: upgrade, enabled: canUpgrade, neighbors: { left: `slot-${selectedSlotId}`, up: `slot-${selectedSlotId}` } },
-    { id: "install-infusion", run: installInfusion, enabled: canInstallInfusion, neighbors: { left: `slot-${selectedSlotId}`, up: healerOwner ? `passive-${PASSIVE_INFUSIONS[PASSIVE_INFUSIONS.length - 1].id}` : `infusion-${infusionChoices[infusionChoices.length - 1].id}` } },
-    { id: "back", run: () => navigate("home"), neighbors: { down: `owner-${GEAR_OWNER_ORDER[0]}` } },
-  ], [canInstallInfusion, canUpgrade, healerOwner, infusionChoices, installInfusion, installPassive, navigate, passiveUnlocked, previewEntryId, selectInfusion, selectOwner, selectSlot, selectWorkshopMode, selectedOwnerId, selectedSlotId, upgrade]);
+    { id: "install-infusion", run: installInfusion, enabled: canInstallInfusion, neighbors: { left: `slot-${selectedSlotId}`, up: `infusion-${infusionChoices[infusionChoices.length - 1].id}`, down: healerOwner ? `passive-ability-${selectedPassiveAbilityId}` : undefined } },
+    { id: "back", run: () => navigate("home"), neighbors: { left: "workshop-infusion", down: `owner-${GEAR_OWNER_ORDER[0]}` } },
+  ], [canInstallInfusion, canUpgrade, healerOwner, infusionChoices, installInfusion, installPassive, navigate, passiveChoices, passiveUnlocked, previewEntryId, selectInfusion, selectOwner, selectPassiveAbility, selectPassiveInfusion, selectSlot, selectWorkshopMode, selectedOwnerId, selectedPassiveAbilityId, selectedSlotId, upgrade]);
   const controller = useMenuController(actions, { onBack: () => navigate("home") });
+  const passiveContext = workshopMode === "infusion" && healerOwner && controller.focusedId.startsWith("passive-");
   if (!hunter || !slot) return null;
   const currentBonus = gearBonusText(recipe.statId, slot.level);
   const nextBonus = gearBonusText(recipe.statId, Math.min(MAX_GEAR_LEVEL, slot.level + 1));
@@ -585,7 +612,25 @@ function GearScreen() {
               <div className="gear-infusion-options">
                 {infusionChoices.map((infusion) => <FocusButton key={infusion.id} id={`infusion-${infusion.id}`} focusedId={controller.focusedId} focus={controller.focus} className={`${infusion.id === selectedInfusion.id ? "is-selected" : ""} ${hunter.gearProgress[selectedOwnerId].infusionAbilityId === infusion.id ? "is-equipped" : ""}`} onClick={() => selectInfusion(infusion.id)}><i>{infusion.icon}</i><span><strong>{infusion.name}</strong><small>{infusion.description}</small></span><b>{hunter.gearProgress[selectedOwnerId].infusionAbilityId === infusion.id ? "✓" : ""}</b></FocusButton>)}
               </div>
-              {healerOwner && <div className="gear-passive-options"><span>Passive · global +{PASSIVE_INFUSION_MIN_GEAR_LEVEL}</span>{PASSIVE_INFUSIONS.map((passive) => <FocusButton key={passive.id} id={`passive-${passive.id}`} focusedId={controller.focusedId} focus={controller.focus} disabled={!passiveUnlocked} className={hunter.gearProgress[selectedOwnerId].passiveInfusionId === passive.id ? "is-equipped" : ""} onClick={() => installPassive(passive.id)}><i>{passive.icon}</i><span><strong>{passive.name}</strong><small>{passive.summary}</small></span><b>{hunter.gearProgress[selectedOwnerId].passiveInfusionId === passive.id ? "✓" : ""}</b></FocusButton>)}</div>}
+              {healerOwner && <div className="gear-passive-options">
+                <span>Passive blessing · global +{PASSIVE_INFUSION_MIN_GEAR_LEVEL}</span>
+                <div className="gear-passive-ability-filter">
+                  {ABILITY_ORDER.map((abilityId) => <FocusButton key={abilityId} id={`passive-ability-${abilityId}`} focusedId={controller.focusedId} focus={controller.focus} className={selectedPassiveAbilityId === abilityId ? "is-selected" : ""} onClick={() => selectPassiveAbility(abilityId)}>{healerAbilities[abilityId].shortName}</FocusButton>)}
+                </div>
+                <div className="gear-passive-choice-list">
+                  {passiveChoices.map((passive) => <FocusButton
+                    key={passive.id}
+                    id={`passive-${passive.id}`}
+                    focusedId={controller.focusedId}
+                    focus={controller.focus}
+                    disabled={!passiveUnlocked}
+                    className={`${selectedPassiveInfusionId === passive.id ? "is-selected" : ""} ${hunter.gearProgress[selectedOwnerId].passiveInfusionId === passive.id ? "is-equipped" : ""}`}
+                    onFocus={() => selectPassiveInfusion(passive.id)}
+                    onPointerEnter={() => selectPassiveInfusion(passive.id)}
+                    onClick={() => { selectPassiveInfusion(passive.id); installPassive(passive.id); }}
+                  ><i>{passive.icon}</i><span><strong>{healerAbilities[passive.abilityId].shortName}: {passive.name}</strong><small>{formatRunBuffEffect(passive.id, 1)}</small></span><b>{hunter.gearProgress[selectedOwnerId].passiveInfusionId === passive.id ? "✓" : ""}</b></FocusButton>)}
+                </div>
+              </div>}
             </article>}
           </div>
           <ControllerLegend back />
@@ -593,15 +638,15 @@ function GearScreen() {
       }
       bottom={
         <FrontSurface className="gear-context" bottom ariaLabel="Gear recipe and material inventory">
-          <header className="context-header"><span>{workshopMode === "upgrade" ? `${GEAR_SLOT_LABELS[selectedSlotId]} recipe` : `${selectedInfusion.name} infusion`}</span><b>{hunter.materials.reduce((sum, item) => sum + item.quantity, 0)} DROPS</b></header>
+          <header className="context-header"><span>{workshopMode === "upgrade" ? `${GEAR_SLOT_LABELS[selectedSlotId]} recipe` : passiveContext ? `${healerAbilities[selectedPassive.abilityId].name}: ${selectedPassive.name}` : `${selectedInfusion.name} infusion`}</span><b>{hunter.materials.reduce((sum, item) => sum + item.quantity, 0)} DROPS</b></header>
           <div className="gear-costs">
-            <span>{workshopMode === "upgrade" ? "Upgrade requirements" : `Infusion requirements · ${GEAR_SLOT_LABELS[selectedSlotId]} +${slot.level} anchor`}</span>
-            {(workshopMode === "upgrade" ? costs : selectedInfusionCosts).length ? (workshopMode === "upgrade" ? costs : selectedInfusionCosts).map((cost) => {
+            <span>{workshopMode === "upgrade" ? "Upgrade requirements" : passiveContext ? "Passive blessing · Rank 1" : `Infusion requirements · ${GEAR_SLOT_LABELS[selectedSlotId]} +${slot.level} anchor`}</span>
+            {passiveContext ? <article className={passiveUnlocked ? "is-met" : "is-missing"}><i>{passiveUnlocked ? "✓" : "×"}</i><span><strong>{formatRunBuffEffect(selectedPassive.id, 1)}</strong><small>{selectedPassive.detail}</small></span><b>{hunter.gearProgress[selectedOwnerId].passiveInfusionId === selectedPassive.id ? "EQUIPPED" : "RANK 1"}</b></article> : (workshopMode === "upgrade" ? costs : selectedInfusionCosts).length ? (workshopMode === "upgrade" ? costs : selectedInfusionCosts).map((cost) => {
               const owned = hunter.materials.find((item) => item.id === cost.itemId)?.quantity ?? 0;
               return <article className={owned >= cost.quantity ? "is-met" : "is-missing"} key={cost.itemId}><i>{owned >= cost.quantity ? "✓" : "×"}</i><span><strong>{cost.itemName}</strong><small>{owned} owned · {cost.quantity} needed</small></span><b>{owned}/{cost.quantity}</b></article>;
             }) : <article className="is-met"><i>✓</i><span><strong>Maximum rank reached</strong><small>No more materials required.</small></span><b>+{MAX_GEAR_LEVEL}</b></article>}
           </div>
-          {workshopMode === "upgrade" ? <FocusButton id="upgrade" focusedId={controller.focusedId} focus={controller.focus} className="gear-upgrade-action" disabled={!canUpgrade} onClick={upgrade}><span>{slot.level >= MAX_GEAR_LEVEL ? "Maximum rank" : `Upgrade to +${slot.level + 1}`}</span><small>{canUpgrade ? "Spend group drops · autosave" : "Collect required group drops"}</small></FocusButton> : <FocusButton id="install-infusion" focusedId={controller.focusedId} focus={controller.focus} className="gear-upgrade-action" disabled={!canInstallInfusion} onClick={installInfusion}><span>{infusionEquipped ? "Infusion equipped" : `Install ${selectedInfusion.name}`}</span><small>{!activeUnlocked ? `Raise any ${GEAR_OWNER_LABELS[selectedOwnerId]} slot to +${ACTIVE_INFUSION_MIN_GEAR_LEVEL}` : !anchorUnlocked ? `Select a +${ACTIVE_INFUSION_MIN_GEAR_LEVEL} anchor slot` : canInstallInfusion ? "Spend group drops · autosave" : infusionEquipped ? "Applies next encounter" : "Collect required group drops"}</small></FocusButton>}
+          {workshopMode === "upgrade" ? <FocusButton id="upgrade" focusedId={controller.focusedId} focus={controller.focus} className="gear-upgrade-action" disabled={!canUpgrade} onClick={upgrade}><span>{slot.level >= MAX_GEAR_LEVEL ? "Maximum rank" : `Upgrade to +${slot.level + 1}`}</span><small>{canUpgrade ? "Spend group drops · autosave" : "Collect required group drops"}</small></FocusButton> : passiveContext ? <div className="gear-passive-context-action"><span>{hunter.gearProgress[selectedOwnerId].passiveInfusionId === selectedPassive.id ? "Passive equipped" : "A · Equip selected passive"}</span><small>Applies at rank 1 next encounter.</small></div> : <FocusButton id="install-infusion" focusedId={controller.focusedId} focus={controller.focus} className="gear-upgrade-action" disabled={!canInstallInfusion} onClick={installInfusion}><span>{infusionEquipped ? "Infusion equipped" : `Install ${selectedInfusion.name}`}</span><small>{!activeUnlocked ? `Raise any ${GEAR_OWNER_LABELS[selectedOwnerId]} slot to +${ACTIVE_INFUSION_MIN_GEAR_LEVEL}` : !anchorUnlocked ? `Select a +${ACTIVE_INFUSION_MIN_GEAR_LEVEL} anchor slot` : canInstallInfusion ? "Spend group drops · autosave" : infusionEquipped ? "Applies next encounter" : "Collect required group drops"}</small></FocusButton>}
           <div className="front-notice is-lower">{notice || "Gear changes save locally and apply when next encounter starts."}</div>
         </FrontSurface>
       }
@@ -664,8 +709,6 @@ function ModeScreen({ onLaunch }: { onLaunch: (bossIds: readonly BossId[], diffi
   const selectDifficulty = useFrontendStore((state) => state.selectDifficulty);
   const navigate = useFrontendStore((state) => state.navigate);
   const [message, setMessage] = useState("");
-  const bossPageSize = 12;
-  const [bossPage, setBossPage] = useState(() => Math.max(0, Math.floor(AVAILABLE_BOSS_IDS.indexOf(selectedBossId) / bossPageSize)));
   const mode = MODE_COPY[modeId];
   const healer = hunter ? HEALER_CLASSES[hunter.activeClassId] : HEALER_CLASSES.priest;
   const progress = hunter?.healers[hunter.activeClassId];
@@ -673,14 +716,11 @@ function ModeScreen({ onLaunch }: { onLaunch: (bossIds: readonly BossId[], diffi
   const selectedDifficulty = DIFFICULTY_BY_SLUG[selectedDifficultySlug];
   const isPve = modeId === "roguelike-pve";
   const isDungeon = modeId === "dungeons";
-  const bossPageCount = Math.ceil(AVAILABLE_BOSS_IDS.length / bossPageSize);
-  const visibleBossIds = AVAILABLE_BOSS_IDS.slice(bossPage * bossPageSize, (bossPage + 1) * bossPageSize);
-  const bossGridRows = Math.ceil(visibleBossIds.length / 3);
-  const bossGridColumns = Math.ceil(visibleBossIds.length / bossGridRows);
-  const changeBossPage = (nextPage: number) => {
-    const page = Math.max(0, Math.min(bossPageCount - 1, nextPage));
-    setBossPage(page);
-    selectBoss(AVAILABLE_BOSS_IDS[page * bossPageSize]);
+  const selectedBossGroup = BOSS_GROUP_BY_ID[selectedBoss.groupId];
+  const visibleBossIds = selectedBossGroup.bossIds;
+  const bossGridColumns = Math.min(2, visibleBossIds.length);
+  const selectBossGroup = (groupId: (typeof BOSS_GROUPS)[number]["id"]) => {
+    selectBoss(BOSS_GROUP_BY_ID[groupId].bossIds[0]);
   };
   const launch = () => {
     if (isPve) return onLaunch(selectRandomBossPair(), "initiate");
@@ -688,31 +728,41 @@ function ModeScreen({ onLaunch }: { onLaunch: (bossIds: readonly BossId[], diffi
     setMessage("Online matchmaking connects here when game server is configured.");
   };
   const actions = useMemo<MenuAction[]>(() => [
-    ...(isDungeon ? visibleBossIds.map((bossId, index) => {
-      const column = Math.floor(index / bossGridRows);
-      const row = index % bossGridRows;
-      const neighborInColumn = (targetColumn: number) => {
-        const columnStart = targetColumn * bossGridRows;
-        if (columnStart >= visibleBossIds.length || targetColumn < 0) return undefined;
-        const columnEnd = Math.min(columnStart + bossGridRows, visibleBossIds.length) - 1;
-        return `boss-${visibleBossIds[Math.min(columnStart + row, columnEnd)]}`;
+    ...(isDungeon ? BOSS_GROUPS.map((group, index) => {
+      const groupColumns = 5;
+      const row = Math.floor(index / groupColumns);
+      const column = index % groupColumns;
+      const groupAt = (targetRow: number, targetColumn: number) => BOSS_GROUPS[targetRow * groupColumns + targetColumn];
+
+      return {
+        id: `boss-group-${group.id}`,
+        run: () => selectBossGroup(group.id),
+        neighbors: {
+          up: row > 0 ? `boss-group-${groupAt(row - 1, column)?.id}` : "back",
+          down: groupAt(row + 1, column)
+            ? `boss-group-${groupAt(row + 1, column)?.id}`
+            : group.id === selectedBossGroup.id ? `boss-${selectedBossGroup.bossIds[0]}` : undefined,
+          left: column > 0 ? `boss-group-${groupAt(row, column - 1)?.id}` : undefined,
+          right: groupAt(row, column + 1) ? `boss-group-${groupAt(row, column + 1)?.id}` : undefined,
+        },
       };
+    }) : []),
+    ...(isDungeon ? visibleBossIds.map((bossId, index) => {
+      const row = Math.floor(index / bossGridColumns);
+      const column = index % bossGridColumns;
+      const bossAt = (targetRow: number, targetColumn: number) => visibleBossIds[targetRow * bossGridColumns + targetColumn];
 
       return {
         id: `boss-${bossId}`,
         run: () => selectBoss(bossId),
         neighbors: {
-          up: row > 0 ? `boss-${visibleBossIds[index - 1]}` : "back",
-          down: index + 1 < Math.min((column + 1) * bossGridRows, visibleBossIds.length)
-            ? `boss-${visibleBossIds[index + 1]}`
-            : `difficulty-${DIFFICULTIES[0].slug}`,
-          left: neighborInColumn(column - 1) ?? (bossPage > 0 ? "boss-page-prev" : undefined),
-          right: neighborInColumn(column + 1) ?? (bossPage < bossPageCount - 1 ? "boss-page-next" : undefined),
+          up: row > 0 ? `boss-${bossAt(row - 1, column)}` : `boss-group-${selectedBossGroup.id}`,
+          down: bossAt(row + 1, column) ? `boss-${bossAt(row + 1, column)}` : `difficulty-${DIFFICULTIES[0].slug}`,
+          left: column > 0 ? `boss-${bossAt(row, column - 1)}` : undefined,
+          right: bossAt(row, column + 1) ? `boss-${bossAt(row, column + 1)}` : undefined,
         },
       };
     }) : []),
-    ...(isDungeon && bossPage > 0 ? [{ id: "boss-page-prev", run: () => changeBossPage(bossPage - 1), neighbors: { right: `boss-${visibleBossIds[0]}`, down: `boss-${visibleBossIds[0]}`, up: "back" } }] : []),
-    ...(isDungeon && bossPage < bossPageCount - 1 ? [{ id: "boss-page-next", run: () => changeBossPage(bossPage + 1), neighbors: { left: `boss-${visibleBossIds[visibleBossIds.length - 1]}`, down: `boss-${visibleBossIds[0]}`, up: "back" } }] : []),
     ...(isDungeon ? DIFFICULTIES.map((difficulty, index) => ({
       id: `difficulty-${difficulty.slug}`,
       run: () => selectDifficulty(difficulty.slug),
@@ -724,15 +774,15 @@ function ModeScreen({ onLaunch }: { onLaunch: (bossIds: readonly BossId[], diffi
       },
     })) : []),
     { id: "launch", run: launch, neighbors: isDungeon ? { up: `difficulty-${DIFFICULTIES[DIFFICULTIES.length - 1].slug}` } : { up: "back" } },
-    { id: "back", run: () => navigate("home"), neighbors: isDungeon ? { down: `boss-${AVAILABLE_BOSS_IDS[0]}` } : { down: "launch" } },
-  ], [bossGridRows, bossPage, bossPageCount, isDungeon, isPve, modeId, navigate, onLaunch, selectBoss, selectDifficulty, selectedBossId, selectedDifficultySlug, visibleBossIds]);
+    { id: "back", run: () => navigate("home"), neighbors: isDungeon ? { down: `boss-group-${selectedBossGroup.id}` } : { down: "launch" } },
+  ], [bossGridColumns, isDungeon, isPve, modeId, navigate, onLaunch, selectBoss, selectDifficulty, selectedBossGroup, selectedBossId, selectedDifficultySlug, visibleBossIds]);
   const controller = useMenuController(actions, { onBack: () => navigate("home") });
   const launchLabel = isPve ? "Begin randomized run" : isDungeon ? `Challenge ${selectedBoss.name}` : "Enter matchmaking";
   const contextRules = isDungeon
     ? [
       [selectedBoss.name, selectedBoss.summary],
-      [selectedBoss.mechanics[0], selectedBoss.briefing],
-      [selectedBoss.mechanics[1], "Controller-ready party behavior and full lower-display support."],
+      [bossMechanicName(selectedBoss.mechanicIds[0]), selectedBoss.briefing],
+      [bossMechanicName(selectedBoss.mechanicIds[1]), "Controller-ready party behavior and full lower-display support."],
     ]
     : isPve
       ? [
@@ -753,17 +803,26 @@ function ModeScreen({ onLaunch }: { onLaunch: (bossIds: readonly BossId[], diffi
           {!isDungeon && <div className="mode-hero"><span>{mode.eyebrow}</span><h2>{mode.title}</h2><p>{mode.description}</p><b>{mode.detail}</b></div>}
           {isDungeon && (
             <div className="boss-picker" aria-label="Choose boss encounter">
-              <div className="boss-picker-heading">
-                <span>Choose encounter · Page {bossPage + 1}/{bossPageCount}</span>
-                <div>
-                  <FocusButton id="boss-page-prev" focusedId={controller.focusedId} focus={controller.focus} disabled={bossPage === 0} onClick={() => changeBossPage(bossPage - 1)}>◀ Previous</FocusButton>
-                  <FocusButton id="boss-page-next" focusedId={controller.focusedId} focus={controller.focus} disabled={bossPage === bossPageCount - 1} onClick={() => changeBossPage(bossPage + 1)}>Next ▶</FocusButton>
-                </div>
+              <div className="boss-picker-heading"><span>Choose a mechanic group</span></div>
+              <div className="boss-group-grid" aria-label="Choose boss group">
+                {BOSS_GROUPS.map((group) => (
+                  <FocusButton
+                    key={group.id}
+                    id={`boss-group-${group.id}`}
+                    focusedId={controller.focusedId}
+                    focus={controller.focus}
+                    className={`boss-group-choice ${group.id === selectedBossGroup.id ? "is-selected" : ""}`}
+                    aria-pressed={group.id === selectedBossGroup.id}
+                    onClick={() => selectBossGroup(group.id)}
+                  >
+                    <b>{group.letter}</b><span><strong>Group {group.letter}</strong><small>{group.name}</small></span>
+                  </FocusButton>
+                ))}
               </div>
-              <div className="boss-choice-grid" style={{ "--boss-grid-rows": bossGridRows, "--boss-grid-columns": bossGridColumns } as React.CSSProperties}>
+              <div className="boss-group-heading"><span>Group {selectedBossGroup.letter} · {selectedBossGroup.name}</span><small>{selectedBossGroup.coreMechanic} mechanics · {visibleBossIds.length} guardians</small></div>
+              <div className="boss-choice-grid">
                 {visibleBossIds.map((bossId) => {
                   const boss = BOSS_DEFINITIONS[bossId];
-                  const group = BOSS_GROUP_BY_ID[boss.groupId];
                   return (
                     <FocusButton
                       key={bossId}
@@ -775,7 +834,7 @@ function ModeScreen({ onLaunch }: { onLaunch: (bossIds: readonly BossId[], diffi
                       aria-pressed={selectedBossId === bossId}
                       onClick={() => selectBoss(bossId)}
                     >
-                      <i>{boss.icon}</i><span><strong>{boss.name}</strong><small>Group {group.letter} · {group.name} · {boss.mechanics[0]}</small></span><b>{selectedBossId === bossId ? "✓" : ""}</b>
+                      <i>{boss.icon}</i><span><strong>{boss.name}</strong><small>{boss.mechanicIds.filter((id) => !bossMechanicIsPassive(id)).map(bossMechanicName).join(" · ")}</small></span><b>{selectedBossId === bossId ? "✓" : ""}</b>
                     </FocusButton>
                   );
                 })}

src/components/GameScene.tsx

@@ -6,6 +6,7 @@ import { getControllerMovement } from "../input/controller";
 import { clone as cloneSkeleton } from "three/examples/jsm/utils/SkeletonUtils.js";
 import { ARENA_CENTER, clampToArena } from "../game/arena";
 import { BOSS_ARCHETYPE_BY_ID } from "../game/bossCatalog";
+import { bossAnimationCue } from "../game/bosses/mechanicPool";
 import {
   isActorAnimationOneShot,
   shouldStartActorAnimation,
@@ -598,7 +599,9 @@ function BossFallback({ bossIndex }: { bossIndex: number }) {
 
 function BullBoss({ bossIndex }: { bossIndex: number }) {
   const phase = useGameStore((state) => state.phase);
-  const motionMode = useGameStore((state) => (bossIndex === 0 ? state.bossMotion : state.additionalBosses[bossIndex - 1]?.motion)?.mode ?? "holding");
+  const motion = useGameStore((state) => bossIndex === 0 ? state.bossMotion : state.additionalBosses[bossIndex - 1]?.motion);
+  const motionMode = motion?.mode ?? "holding";
+  const animationCue = motion ? bossAnimationCue(motion) : "idle";
   const bossHp = useGameStore((state) => (bossIndex === 0 ? state.boss : state.additionalBosses[bossIndex - 1]?.boss)?.hp ?? 0);
   const defeated = bossHp <= 0;
   const group = useRef<THREE.Group>(null);
@@ -618,15 +621,13 @@ function BullBoss({ bossIndex }: { bossIndex: number }) {
 
   const clipName = phase === "victory" || defeated
     ? "Death"
-    : motionMode === "telegraph"
+    : animationCue === "attack"
       ? "Idle_Headlow"
-      : motionMode === "pouncing"
+      : animationCue === "special"
         ? "Gallop_Jump"
-        : motionMode === "charging" || motionMode === "returning"
+        : animationCue === "move"
         ? "Gallop"
-          : motionMode === "stacking"
-            ? "Idle_Headlow"
-            : "Idle";
+        : "Idle";
 
   useEffect(() => {
     const next = actions[clipName];
@@ -661,9 +662,6 @@ function BullBoss({ bossIndex }: { bossIndex: number }) {
     if (motion.mode === "telegraph" || motion.mode === "charging" || motion.mode === "pouncing") {
       facingX = motion.chargeEnd[0] - motion.chargeStart[0];
       facingZ = motion.chargeEnd[1] - motion.chargeStart[1];
-    } else if (motion.mode === "returning") {
-      facingX = ARENA_CENTER[0] + motion.formationOffsetX - motion.position[0];
-      facingZ = ARENA_CENTER[1] - motion.position[1];
     }
     if (Math.hypot(facingX, facingZ) > 0.01) {
       const targetAngle = Math.atan2(facingX, facingZ);
@@ -745,7 +743,7 @@ const ALTERNATE_BOSS_CONFIG: Record<AlternateBossKind, AlternateBossConfig> = {
   },
   "crystal-bat-matriarch": {
     url: CRYSTAL_BAT_MATRIARCH_URL,
-    scale: 1.04,
+    scale: 0.828,
     idle: "Idle",
     move: "Swoop",
     attack: "SonicPulse",
@@ -820,84 +818,17 @@ const ALTERNATE_BOSS_CONFIG: Record<AlternateBossKind, AlternateBossConfig> = {
   },
 };
 
-const PROTOTYPE_MOVE_MODES = [
-  "skyfall",
-  "mantis_sidestep",
-  "ram_charging",
-  "cinderback_ricochet",
-  "charging",
-  "returning",
-  "sandglass_burrowing",
-  "crab_scuttling",
-] as const;
-
-const PROTOTYPE_ATTACK_MODES = [
-  "tethering",
-  "venom_cast",
-  "breath_telegraph",
-  "breath_sweeping",
-  "mantis_line_telegraph",
-  "mantis_cross_telegraph",
-  "ram_charge_telegraph",
-  "ram_quake",
-  "ram_shatter",
-  "cinderback_curl",
-  "cinderback_slam",
-  "ghost_soul_cross",
-  "ghost_soul_cross_followup",
-  "ghost_haunting",
-  "golem_shockwave",
-  "golem_crownfall",
-  "telegraph",
-  "stacking",
-  "pouncing",
-  "sandglass_burrow_telegraph",
-  "sandglass_eruption",
-  "sandglass_hourglass",
-  "crab_scuttle_telegraph",
-  "crab_tidal_burst",
-] as const;
-
-function alternateBossClip(kind: AlternateBossKind, motionMode: ReturnType<typeof useGameStore.getState>["bossMotion"]["mode"]) {
+function alternateBossClip(kind: AlternateBossKind, motion: ReturnType<typeof useGameStore.getState>["bossMotion"]) {
   const config = ALTERNATE_BOSS_CONFIG[kind];
-  if (config.prototype) {
-    if ((PROTOTYPE_MOVE_MODES as readonly string[]).includes(motionMode)) return config.move;
-    if ((PROTOTYPE_ATTACK_MODES as readonly string[]).includes(motionMode)) return config.attack;
-    return config.idle;
-  }
-  if (kind === "sandglass-scorpion") {
-    if (motionMode === "sandglass_burrow_telegraph" || motionMode === "sandglass_burrowing") return config.move;
-    if (motionMode === "sandglass_eruption") return config.attack;
-    if (motionMode === "sandglass_hourglass") return config.special;
-    if (motionMode === "sandglass_recover") return "Stagger";
-  }
-  if (kind === "cragclaw-crab") {
-    if (motionMode === "crab_scuttling") return config.move;
-    if (motionMode === "crab_scuttle_telegraph") return config.attack;
-    if (motionMode === "crab_tidal_burst") return config.special;
-  }
-  if (kind === "mournveil-ghost") {
-    if (motionMode === "ghost_soul_cross" || motionMode === "ghost_soul_cross_followup") return config.attack;
-    if (motionMode === "ghost_haunting") return config.special;
-  }
-  if (kind === "crownshard-golem") {
-    if (motionMode === "golem_shockwave") return config.attack;
-    if (motionMode === "golem_crownfall") return config.special;
-  }
-  if (kind === "crystal-bat-matriarch") {
-    if (motionMode === "golem_shockwave") return config.attack;
-    if (motionMode === "golem_crownfall") return config.special;
-    if (motionMode === "golem_recover") return "Stagger";
-  }
-  if (BOSS_ARCHETYPE_BY_ID[kind] === "web-caster" && (motionMode === "tethering" || motionMode === "venom_cast")) return config.attack;
-  return config.idle;
+  return config[bossAnimationCue(motion)];
 }
 
 function AlternateBoss({ kind, bossIndex }: { kind: AlternateBossKind; bossIndex: number }) {
   const config = ALTERNATE_BOSS_CONFIG[kind];
   const archetype = BOSS_ARCHETYPE_BY_ID[kind];
   const phase = useGameStore((state) => state.phase);
-  const motionMode = useGameStore((state) => (bossIndex === 0 ? state.bossMotion : state.additionalBosses[bossIndex - 1]?.motion)?.mode ?? "holding");
+  const motion = useGameStore((state) => bossIndex === 0 ? state.bossMotion : state.additionalBosses[bossIndex - 1]?.motion);
+  const motionMode = motion?.mode ?? "holding";
   const bossHp = useGameStore((state) => (bossIndex === 0 ? state.boss : state.additionalBosses[bossIndex - 1]?.boss)?.hp ?? 0);
   const defeated = bossHp <= 0;
   const group = useRef<THREE.Group>(null);
@@ -915,7 +846,7 @@ function AlternateBoss({ kind, bossIndex }: { kind: AlternateBossKind; bossIndex
     });
   }, [kind, model]);
 
-  const clipName = phase === "victory" || defeated ? config.death : alternateBossClip(kind, motionMode);
+  const clipName = phase === "victory" || defeated ? config.death : alternateBossClip(kind, motion ?? useGameStore.getState().bossMotion);
 
   useEffect(() => {
     const next = actions[clipName];
@@ -944,7 +875,7 @@ function AlternateBoss({ kind, bossIndex }: { kind: AlternateBossKind; bossIndex
     if (!current) return;
     const motion = current.motion;
     const airborne = archetype === "sky-sweeper" && motion.mode === "skyfall";
-    const burrowed = archetype === "burrower" && motion.mode === "sandglass_burrowing";
+    const burrowed = archetype === "burrower" && motion.activeMechanicId === "burrow-rush" && motion.mode === "charging";
     const floatingHeight = config.floating ? 0.2 : 0.03;
     targetPosition.set(motion.position[0], airborne ? 3.2 : burrowed ? -0.58 : floatingHeight, motion.position[1]);
     group.current.position.lerp(targetPosition, 1 - Math.pow(0.00001, delta));
@@ -955,14 +886,13 @@ function AlternateBoss({ kind, bossIndex }: { kind: AlternateBossKind; bossIndex
     );
     if (archetype === "sky-sweeper" && (motion.mode === "breath_telegraph" || motion.mode === "breath_sweeping")) {
       targetAngle = motion.breathAngle;
-    } else if (archetype === "duelist" && (
-      motion.mode === "mantis_sidestep"
-      || motion.mode === "mantis_line_telegraph"
+    } else if (
+      motion.mode === "mantis_line_telegraph"
       || motion.mode === "mantis_cross_telegraph"
-    )) {
+    ) {
       const target = state.partyPositions[motion.chargeTargetId];
       targetAngle = Math.atan2(target[0] - motion.position[0], target[1] - motion.position[1]);
-    } else if (["ram_charge_telegraph", "ram_charging", "cinderback_curl", "cinderback_ricochet", "sandglass_burrow_telegraph", "sandglass_burrowing", "crab_scuttle_telegraph", "crab_scuttling"].includes(motion.mode)) {
+    } else if (motion.mode === "telegraph" || motion.mode === "charging") {
       targetAngle = Math.atan2(motion.chargeEnd[0] - motion.position[0], motion.chargeEnd[1] - motion.position[1]);
     }
     const difference = Math.atan2(

src/components/boss/BossMechanicIndicators.tsx

@@ -1,18 +1,17 @@
 import { useFrame } from "@react-three/fiber";
-import { useRef, type ComponentType } from "react";
+import { Html } from "@react-three/drei";
+import { useLayoutEffect, useRef, type ComponentType } from "react";
 import * as THREE from "three";
-import { BULL_CHARGE, BULL_POUNCE } from "../../game/bossMechanics";
-import { MEMORY_SEQUENCE, MEMORY_SYMBOLS } from "../../game/bosses/mechanicPool";
-import { SKY_SWEEPER_BREATH } from "../../game/bosses/skySweeper";
+import { BULL_CHARGE, BULL_POUNCE, MEMORY_SEQUENCE, MEMORY_SYMBOLS, SKY_SWEEPER_BREATH } from "../../game/bosses/mechanicPool";
 import { useGameStore } from "../../game/store";
-import type { MemorySymbolId, MemoryTile, PoolTelegraph } from "../../game/types";
+import type { BossMotionMode, MemorySymbolId, MemoryTile, PoolTelegraph } from "../../game/types";
 
 const CHARGE_MARKERS = [0, 1, 2, 3, 4, 5, 6] as const;
 const STACK_DIRECTIONS = Array.from({ length: 8 }, (_, index) => (index / 8) * Math.PI * 2);
 const EMPTY_HAZARDS: never[] = [];
 const EMPTY_SLASH_LANES: never[] = [];
 const EMPTY_POOL_TELEGRAPHS: never[] = [];
-const ACTIVE_LANE_MODES = new Set(["mantis_recover", "ram_charging", "ram_recover", "cinderback_ricochet", "cinderback_recover", "sandglass_burrowing", "sandglass_recover", "crab_scuttling", "crab_recover", "ghost_recover"]);
+const ACTIVE_LANE_MODES = new Set<BossMotionMode>(["charging"]);
 const DANGER_WARNING_COLOR = "#ff3b30";
 const DANGER_ACTIVE_COLOR = "#d4142a";
 const DANGER_HIGHLIGHT_COLOR = "#ff8a80";
@@ -290,7 +289,7 @@ export function CircleHazardIndicators({ bossIndex = 0 }: { bossIndex?: number }
   return <>{hazards.map((hazard) => <CircleHazardIndicator key={hazard.id} hazardId={hazard.id} bossIndex={bossIndex} />)}</>;
 }
 
-/** Tall gold ward plus a lightweight spectral pursuer for Mournveil's healer run. */
+/** Tall gold ward plus a lightweight spectral pursuer for the shared Soul Siphon mechanic. */
 export function SoulSiphonIndicator({ bossIndex = 0 }: { bossIndex?: number }) {
   const phase = useGameStore((state) => state.phase);
   const motion = useGameStore((state) => motionAt(state, bossIndex));
@@ -392,12 +391,49 @@ function MemorySymbolMark({ symbol, size = 1, opacity = 1 }: { symbol: MemorySym
   );
 }
 
-function MemoryTileIndicator({ tile, inputActive }: { tile: MemoryTile; inputActive: boolean }) {
+const MEMORY_SYMBOL_GLYPHS: Record<MemorySymbolId, string> = {
+  triangle: "△",
+  cross: "+",
+  circle: "○",
+  square: "◇",
+};
+
+function MemoryTileIndicator({ tile, inputActive, completed }: { tile: MemoryTile; inputActive: boolean; completed: boolean }) {
   const color = MEMORY_SYMBOLS[tile.symbol].color;
   const halfSize = MEMORY_SEQUENCE.tileSize * 0.5;
   const gridOffsets = [-0.48, 0, 0.48] as const;
+  const group = useRef<THREE.Group>(null);
+  const fade = useRef(1);
+  const materials = useRef<{ material: THREE.MeshBasicMaterial; baseOpacity: number }[]>([]);
+
+  useLayoutEffect(() => {
+    const nextMaterials: { material: THREE.MeshBasicMaterial; baseOpacity: number }[] = [];
+    group.current?.traverse((child) => {
+      if (!(child instanceof THREE.Mesh)) return;
+      const childMaterials = Array.isArray(child.material) ? child.material : [child.material];
+      for (const material of childMaterials) {
+        if (material instanceof THREE.MeshBasicMaterial) {
+          nextMaterials.push({ material, baseOpacity: material.opacity });
+        }
+      }
+    });
+    materials.current = nextMaterials;
+  }, [inputActive]);
+
+  useFrame((_, delta) => {
+    if (!completed && fade.current >= 0.999) return;
+    if (completed && fade.current <= 0.01) {
+      fade.current = 0;
+      if (group.current) group.current.visible = false;
+      return;
+    }
+    if (group.current) group.current.visible = true;
+    fade.current = THREE.MathUtils.damp(fade.current, completed ? 0 : 1, 18, delta);
+    for (const entry of materials.current) entry.material.opacity = entry.baseOpacity * fade.current;
+  });
+
   return (
-    <group position={[tile.center[0], 0.075, tile.center[1]]}>
+    <group ref={group} position={[tile.center[0], 0.075, tile.center[1]]}>
       <mesh>
         <boxGeometry args={[MEMORY_SEQUENCE.tileSize, 0.04, MEMORY_SEQUENCE.tileSize]} />
         <meshBasicMaterial color={color} transparent opacity={inputActive ? 0.28 : 0.16} depthWrite={false} />
@@ -440,21 +476,60 @@ function MemorySequenceIndicator({ telegraph, bossPosition, time }: { telegraph:
   );
   const flashSymbol = telegraph.sequence[flashIndex];
   const source = bossPosition ?? telegraph.center;
+  const completedCount = showingSequence ? 0 : telegraph.inputIndex ?? 0;
   return (
     <>
-      {telegraph.tiles.map((tile) => <MemoryTileIndicator key={tile.symbol} tile={tile} inputActive={!showingSequence} />)}
+      {telegraph.tiles.map((tile) => {
+        const sequenceIndex = telegraph.sequence!.indexOf(tile.symbol);
+        return (
+          <MemoryTileIndicator
+            key={tile.symbol}
+            tile={tile}
+            inputActive={!showingSequence}
+            completed={sequenceIndex >= 0 && sequenceIndex < completedCount}
+          />
+        );
+      })}
       {showingSequence && (
-        <group position={[source[0], 2.5, source[1]]}>
-          <mesh rotation={[-Math.PI / 2, 0, 0]}>
-            <circleGeometry args={[0.88, 32]} />
-            <meshBasicMaterial color="#111827" transparent opacity={0.9} depthWrite={false} />
-          </mesh>
-          <mesh position={[0, 0.015, 0]} rotation={[-Math.PI / 2, 0, 0]}>
-            <ringGeometry args={[0.8, 0.9, 32]} />
-            <meshBasicMaterial color={MEMORY_SYMBOLS[flashSymbol].color} transparent opacity={1} depthWrite={false} />
-          </mesh>
-          <MemorySymbolMark symbol={flashSymbol} size={1.05} />
-        </group>
+        <Html position={[source[0], 3.1, source[1] + 0.3]} center zIndexRange={[30, 20]} style={{ pointerEvents: "none" }}>
+          <div style={{ display: "grid", justifyItems: "center", gap: 7 }}>
+            <div
+              style={{
+                width: 64,
+                height: 64,
+                display: "grid",
+                placeItems: "center",
+                borderRadius: "50%",
+                border: `4px solid ${MEMORY_SYMBOLS[flashSymbol].color}`,
+                background: "rgba(17, 24, 39, 0.96)",
+                boxShadow: "0 0 0 4px rgba(216, 184, 92, 0.92), 0 0 18px rgba(255, 244, 199, 0.8)",
+                color: MEMORY_SYMBOLS[flashSymbol].color,
+                fontSize: 47,
+                fontWeight: 900,
+                lineHeight: 1,
+                textShadow: "0 0 8px currentColor",
+              }}
+            >
+              {MEMORY_SYMBOL_GLYPHS[flashSymbol]}
+            </div>
+            <div style={{ display: "flex", gap: 6 }}>
+              {telegraph.sequence.map((_, index) => (
+                <span
+                  key={index}
+                  style={{
+                    width: index === flashIndex ? 9 : 7,
+                    height: index === flashIndex ? 9 : 7,
+                    borderRadius: "50%",
+                    background: index === flashIndex
+                      ? MEMORY_SYMBOLS[flashSymbol].color
+                      : index < flashIndex ? "#fff4c7" : "#64748b",
+                    boxShadow: index === flashIndex ? "0 0 7px currentColor" : "none",
+                  }}
+                />
+              ))}
+            </div>
+          </div>
+        </Html>
       )}
     </>
   );

src/frontend/saveRepository.test.ts

@@ -1,6 +1,7 @@
 import { describe, expect, it } from "vitest";
 import { SaveRepository, type StorageAdapter } from "./saveRepository";
 import { groupDrop } from "../game/progression/loot";
+import { RUN_BUFF_ORDER } from "../game/roguelike";
 
 function memoryStorage(): StorageAdapter {
   const data = new Map<string, string>();
@@ -169,16 +170,29 @@ describe("SaveRepository", () => {
     const repository = new SaveRepository(storage, () => "2026-07-10T12:00:00.000Z");
     const created = repository.create(1, "Infused");
     created.gearProgress.priest.infusionAbilityId = "priest-sanctuary";
-    created.gearProgress.priest.passiveInfusionId = "restoring-grace";
+    created.gearProgress.priest.passiveInfusionId = "restoring-grace" as never;
+    created.gearProgress.druid.passiveInfusionId = "mend-echo";
     created.gearProgress.brann.infusionAbilityId = "removed-infusion";
-    created.gearProgress.brann.passiveInfusionId = "deep-wells";
+    created.gearProgress.brann.passiveInfusionId = "deep-wells" as never;
     storage.setItem("i-want-to-heal:saves:local:v1", JSON.stringify({ 1: created }));
 
     const migrated = repository.list(null)[0].local!;
     expect(migrated.schemaVersion).toBe(5);
     expect(migrated.gearProgress.priest.infusionAbilityId).toBe("priest-sanctuary");
-    expect(migrated.gearProgress.priest.passiveInfusionId).toBe("restoring-grace");
+    expect(migrated.gearProgress.priest.passiveInfusionId).toBeNull();
+    expect(migrated.gearProgress.druid.passiveInfusionId).toBe("mend-echo");
     expect(migrated.gearProgress.brann.infusionAbilityId).toBeNull();
     expect(migrated.gearProgress.brann.passiveInfusionId).toBeNull();
   });
+
+  it("persists every new roguelike buff as a healer passive infusion", () => {
+    for (const passiveId of RUN_BUFF_ORDER) {
+      const storage = memoryStorage();
+      const repository = new SaveRepository(storage, () => "2026-07-10T12:00:00.000Z");
+      const created = repository.create(1, "Infused");
+      created.gearProgress.priest.passiveInfusionId = passiveId;
+      storage.setItem("i-want-to-heal:saves:local:v1", JSON.stringify({ 1: created }));
+      expect(repository.list(null)[0].local?.gearProgress.priest.passiveInfusionId).toBe(passiveId);
+    }
+  });
 });

src/frontend/store.ts

@@ -3,14 +3,14 @@ import { DEFAULT_SETTINGS, normalizeHunterName } from "./data";
 import { SaveRepository } from "./saveRepository";
 import { AccountRepository, type AccountResult } from "./accountRepository";
 import type { AppScreen, GameModeId, GameSettings, HunterSave, SaveSlotId, SaveSlotState } from "./types";
-import type { BossId, HealerClassId, InventoryItem } from "../game/types";
+import type { AbilityId, BossId, HealerClassId, InventoryItem, RunBuffId } from "../game/types";
+import { RUN_BUFF_ORDER, RUN_BUFFS } from "../game/roguelike";
 import { upgradeGearSlot, type GearOwnerId, type GearSlotId } from "../game/progression/gear";
 import {
   equipActiveInfusion,
   equipPassiveInfusion,
   infusionsForOwner,
 } from "../game/progression/infusions";
-import type { RunBuffId } from "../game/types";
 import { normalizeDifficultySlug, rollBossReward, type BossRewardAward, type DifficultySlug } from "../game/progression/loot";
 
 const repository = new SaveRepository();
@@ -59,6 +59,8 @@ export interface FrontendState {
   selectedGearSlotId: GearSlotId;
   gearWorkshopMode: "upgrade" | "infusion";
   selectedInfusionId: string;
+  selectedPassiveAbilityId: AbilityId;
+  selectedPassiveInfusionId: RunBuffId;
   recentRewards: BossRewardAward[];
   settings: GameSettings;
   notice: string;
@@ -81,6 +83,8 @@ export interface FrontendState {
   selectGearSlot: (slotId: GearSlotId) => void;
   selectGearWorkshopMode: (mode: "upgrade" | "infusion") => void;
   selectInfusion: (infusionId: string) => void;
+  selectPassiveAbility: (abilityId: AbilityId) => void;
+  selectPassiveInfusion: (passiveId: RunBuffId) => void;
   upgradeSelectedGear: () => boolean;
   equipSelectedInfusion: () => boolean;
   equipPassiveInfusion: (passiveId: RunBuffId) => boolean;
@@ -110,6 +114,8 @@ export const useFrontendStore = create<FrontendState>((set, get) => ({
   selectedGearSlotId: "weapon",
   gearWorkshopMode: "upgrade",
   selectedInfusionId: infusionsForOwner("priest")[0].id,
+  selectedPassiveAbilityId: "mend",
+  selectedPassiveInfusionId: "mend-echo",
   recentRewards: [],
   settings: loadSettings(),
   notice: "",
@@ -187,6 +193,15 @@ export const useFrontendStore = create<FrontendState>((set, get) => ({
   selectGearSlot: (selectedGearSlotId) => set({ selectedGearSlotId, notice: "" }),
   selectGearWorkshopMode: (gearWorkshopMode) => set({ gearWorkshopMode, notice: "" }),
   selectInfusion: (selectedInfusionId) => set({ selectedInfusionId, notice: "" }),
+  selectPassiveAbility: (selectedPassiveAbilityId) => {
+    const selectedPassiveInfusionId = RUN_BUFF_ORDER.find((id) => RUN_BUFFS[id].abilityId === selectedPassiveAbilityId) ?? "mend-echo";
+    set({ selectedPassiveAbilityId, selectedPassiveInfusionId, notice: "" });
+  },
+  selectPassiveInfusion: (selectedPassiveInfusionId) => set({
+    selectedPassiveAbilityId: RUN_BUFFS[selectedPassiveInfusionId].abilityId,
+    selectedPassiveInfusionId,
+    notice: "",
+  }),
   upgradeSelectedGear: () => {
     const { activeSlotId, accountId, selectedGearOwnerId, selectedGearSlotId } = get();
     if (!activeSlotId) return false;
@@ -326,6 +341,8 @@ export type FrontendSnapshot = Omit<FrontendState,
   | "selectGearSlot"
   | "selectGearWorkshopMode"
   | "selectInfusion"
+  | "selectPassiveAbility"
+  | "selectPassiveInfusion"
   | "upgradeSelectedGear"
   | "equipSelectedInfusion"
   | "equipPassiveInfusion"
@@ -359,6 +376,8 @@ export function getFrontendSnapshot(): FrontendSnapshot {
     selectGearSlot: _selectGearSlot,
     selectGearWorkshopMode: _selectGearWorkshopMode,
     selectInfusion: _selectInfusion,
+    selectPassiveAbility: _selectPassiveAbility,
+    selectPassiveInfusion: _selectPassiveInfusion,
     upgradeSelectedGear: _upgradeSelectedGear,
     equipSelectedInfusion: _equipSelectedInfusion,
     equipPassiveInfusion: _equipPassiveInfusion,

src/game/bossCatalog.test.ts

@@ -1,6 +1,7 @@
 import { describe, expect, it } from "vitest";
 import { AVAILABLE_BOSS_IDS, BOSS_DEFINITIONS, BOSS_GROUPS } from "./bossCatalog";
 import { createBossMotionState, createBossState } from "./bossMechanics";
+import { BOSS_MECHANIC_POOL, BOSS_MECHANIC_REGISTRY, bossMechanicName } from "./bosses/mechanicPool";
 
 describe("boss catalog", () => {
   it("derives the available roster from every catalog definition", () => {
@@ -42,4 +43,21 @@ describe("boss catalog", () => {
     expect(state.hp).toBe(state.maxHp);
     expect(motion.bossId).toBe(bossId);
   });
+
+  it("resolves every boss loadout through the canonical mechanic registry", () => {
+    const assigned = new Set(Object.values(BOSS_DEFINITIONS).flatMap((boss) => boss.mechanicIds));
+    expect(assigned).toEqual(new Set(Object.keys(BOSS_MECHANIC_REGISTRY)));
+    expect(Object.keys(BOSS_MECHANIC_REGISTRY)).toEqual(BOSS_MECHANIC_POOL.map((mechanic) => mechanic.id));
+    for (const boss of Object.values(BOSS_DEFINITIONS)) {
+      expect(boss.mechanicIds).toContain("basic-melee");
+      for (const mechanicId of boss.mechanicIds) {
+        expect(BOSS_MECHANIC_REGISTRY[mechanicId].name).toBe(bossMechanicName(mechanicId));
+      }
+    }
+  });
+
+  it("gives every boss a distinct mechanic kit", () => {
+    const kits = Object.values(BOSS_DEFINITIONS).map((boss) => boss.mechanicIds.join(","));
+    expect(new Set(kits)).toHaveLength(AVAILABLE_BOSS_IDS.length);
+  });
 });

src/game/bossCatalog.ts

@@ -1,4 +1,5 @@
-import type { BossId } from "./types";
+import { bossMechanicName } from "./bosses/mechanicPool";
+import type { BossId, BossMechanicId } from "./types";
 
 export type BossArchetype =
   | "bull"
@@ -46,7 +47,7 @@ export interface BossDefinition {
   failure: string;
   mapTitle: string;
   mapCopy: string;
-  mechanics: readonly [string, string, ...string[]];
+  mechanicIds: readonly [BossMechanicId, BossMechanicId, ...BossMechanicId[]];
   maxHp: number;
   archetype: BossArchetype;
   groupId: BossGroupId;
@@ -58,16 +59,20 @@ interface BossSeed {
   icon: string;
   accent: string;
   summary: string;
-  mechanics: readonly [string, string, ...string[]];
+  mechanicIds: readonly [BossMechanicId, BossMechanicId, ...BossMechanicId[]];
   maxHp: number;
   archetype: BossArchetype;
 }
 
 function boss(id: BossId, index: number, seed: BossSeed): BossDefinition {
-  const [first, second] = seed.mechanics;
+  const [firstId, secondId] = seed.mechanicIds;
+  const first = bossMechanicName(firstId);
+  const second = bossMechanicName(secondId);
+  const mechanicIds = [...seed.mechanicIds, "basic-melee"] as BossDefinition["mechanicIds"];
   return {
     id,
     ...seed,
+    mechanicIds,
     groupId: BOSS_GROUP_BY_BOSS_ID[id],
     trial: `Trial ${String(index + 1).padStart(2, "0")} · ${seed.title}`,
     briefing: `Read ${first}, then preserve open ground for ${second}.`,
@@ -80,111 +85,111 @@ function boss(id: BossId, index: number, seed: BossSeed): BossDefinition {
 const BOSS_SEEDS: Record<BossId, BossSeed> = {
   bulldrome: {
     name: "Bulldrome", title: "Hall of the Cinder Bull", icon: "♜", accent: "#e2744e",
-    summary: "Charges marked lanes and crushes grouped targets.", mechanics: ["Bull Charge", "Crushing Pounce"], maxHp: 500, archetype: "bull",
+    summary: "Charges marked lanes and crushes grouped targets.", mechanicIds: ["bull-charge", "crushing-pounce", "cinder-nova", "ember-brand"], maxHp: 500, archetype: "bull",
   },
   "sandglass-scorpion": {
     name: "Sandglass Scorpion", title: "The Sunken Hour", icon: "⌛", accent: "#e9b94f",
-    summary: "Burrows beneath marked paths and erupts through timed hourglass zones.", mechanics: ["Burrow Rush", "Hourglass Eruption"], maxHp: 515, archetype: "burrower",
+    summary: "Burrows beneath marked paths and erupts through timed hourglass zones.", mechanicIds: ["burrow-rush", "hourglass-eruption", "memory-sequence"], maxHp: 515, archetype: "burrower",
   },
   "cragclaw-crab": {
     name: "Cragclaw", title: "The Drowned Breakwater", icon: "♋", accent: "#49c7d4",
-    summary: "Scuttles through marked lanes and crushes the arena beneath tidal bursts.", mechanics: ["Sidewinder Rush", "Crushing Tide"], maxHp: 505, archetype: "crab",
+    summary: "Scuttles through marked lanes and crushes the arena beneath tidal bursts.", mechanicIds: ["sidewinder-rush", "crushing-tide", "aetheric-soak"], maxHp: 505, archetype: "crab",
   },
   "mournveil-ghost": {
     name: "Mournveil", title: "The Silent Reliquary", icon: "◉", accent: "#9d72ff",
-    summary: "Cuts the arena twice with spectral lanes and leaves hungry rifts beneath allies.", mechanics: ["Soul Scissors", "Haunting Rifts"], maxHp: 505, archetype: "ghost",
+    summary: "Cuts the arena twice with spectral lanes and leaves hungry rifts beneath allies.", mechanicIds: ["vine-scissors", "haunting-rifts", "soul-siphon"], maxHp: 505, archetype: "ghost",
   },
   "crownshard-golem": {
     name: "Crownshard Golem", title: "The Broken Coronation", icon: "♛", accent: "#e0bd45",
-    summary: "Sends royal shockwaves across the floor and calls crushing crown shards from above.", mechanics: ["Royal Shockwave", "Crownfall"], maxHp: 500, archetype: "golem",
+    summary: "Sends royal shockwaves across the floor and calls crushing crown shards from above.", mechanicIds: ["tri-burst", "ultimate-skyfall", "aetheric-soak"], maxHp: 500, archetype: "golem",
   },
   "crystal-bat-matriarch": {
     name: "Crystal Bat Matriarch", title: "The Prism Echo", icon: "◈", accent: "#8eeaff",
-    summary: "Sonic rings force precise spacing while orbiting mirror shards fracture safe ground.", mechanics: ["Sonic Ring", "Mirror Shards"], maxHp: 480, archetype: "golem",
+    summary: "Sonic rings force precise spacing while orbiting mirror shards fracture safe ground.", mechanicIds: ["tri-burst", "prism-beam", "memory-sequence"], maxHp: 480, archetype: "golem",
   },
   "stormwool-alpaca": {
     name: "Stormwool", title: "The Thunder Fleece", icon: "ϟ", accent: "#8fc7ff",
-    summary: "Gallops through charged lanes before crashing onto the marked healer.", mechanics: ["Storm Charge", "Cloudburst Pounce"], maxHp: 480, archetype: "bull",
+    summary: "Gallops through charged lanes before crashing onto the marked healer.", mechanicIds: ["bull-charge", "crushing-pounce", "stormfall"], maxHp: 480, archetype: "bull",
   },
   "cluckhorn-colossus": {
     name: "Cluckhorn Colossus", title: "The Roostbreaker", icon: "✹", accent: "#f0b85d",
-    summary: "Stampedes sideways and drops cracking shell bursts on spread targets.", mechanics: ["Roost Rush", "Shellburst"], maxHp: 475, archetype: "crab",
+    summary: "Stampedes sideways and drops cracking shell bursts on spread targets.", mechanicIds: ["sidewinder-rush", "crushing-tide", "meteor-spread"], maxHp: 475, archetype: "crab",
   },
   "ashwing-demon": {
     name: "Ashwing", title: "The Cinder Choir", icon: "♠", accent: "#df665d",
-    summary: "Carves crossing fire lanes and opens persistent ember rifts.", mechanics: ["Ash Scissors", "Cinder Rifts"], maxHp: 515, archetype: "ghost",
+    summary: "Carves crossing fire lanes and opens persistent ember rifts.", mechanicIds: ["vine-scissors", "haunting-rifts", "cinder-nova"], maxHp: 515, archetype: "ghost",
   },
   "riftclaw-demon": {
     name: "Riftclaw", title: "The Broken Duel", icon: "⚔", accent: "#d45cff",
-    summary: "Sidesteps around the tank before cutting single and crossed void lanes.", mechanics: ["Rift Blade", "Abyss Cross"], maxHp: 495, archetype: "duelist",
+    summary: "Sidesteps around the tank before cutting single and crossed void lanes.", mechanicIds: ["elemental-beam", "guardian-cross", "soul-siphon"], maxHp: 495, archetype: "duelist",
   },
   "tempestscale-dragon": {
     name: "Tempestscale", title: "The Living Storm", icon: "☈", accent: "#5fc8e8",
-    summary: "Sweeps the arena with storm breath before marking allies for sky strikes.", mechanics: ["Tempest Breath", "Stormfall"], maxHp: 500, archetype: "sky-sweeper",
+    summary: "Sweeps the arena with storm breath before marking allies for sky strikes.", mechanicIds: ["storm-breath", "stormfall", "prism-beam"], maxHp: 500, archetype: "sky-sweeper",
   },
   emberfox: {
     name: "Emberfox", title: "The Burning Trail", icon: "✦", accent: "#ff7b45",
-    summary: "Ricochets across the arena and leaves fire at every landing.", mechanics: ["Foxfire Rush", "Ember Pounce"], maxHp: 465, archetype: "ricochet",
+    summary: "Ricochets across the arena and leaves fire at every landing.", mechanicIds: ["ricochet-rush", "meteor-slam", "ember-brand"], maxHp: 465, archetype: "ricochet",
   },
   "mirelord-frog": {
     name: "Mirelord", title: "The Drowned Bell", icon: "●", accent: "#73c96b",
-    summary: "Dives below the mire before erupting through timed bog zones.", mechanics: ["Mire Dive", "Bogglass Eruption"], maxHp: 490, archetype: "burrower",
+    summary: "Dives below the mire before erupting through timed bog zones.", mechanicIds: ["burrow-rush", "hourglass-eruption", "hollow-collapse"], maxHp: 490, archetype: "burrower",
   },
   "stonebreaker-giant": {
     name: "Stonebreaker", title: "The Walking Crag", icon: "▰", accent: "#c89563",
-    summary: "Sends quake bands across the floor and rains boulders on spread allies.", mechanics: ["Crag Shockwave", "Boulderfall"], maxHp: 500, archetype: "golem",
+    summary: "Sends quake bands across the floor and rains boulders on spread allies.", mechanicIds: ["tri-burst", "ruin-quake", "meteor-spread"], maxHp: 500, archetype: "golem",
   },
   "glub-sovereign": {
     name: "Glub Sovereign", title: "The Binding Ooze", icon: "◌", accent: "#6ce0b8",
-    summary: "Links two allies with living slime before seeding toxic pools.", mechanics: ["Ooze Tether", "Caustic Brood"], maxHp: 495, archetype: "web-caster",
+    summary: "Links two allies with living slime before seeding toxic pools.", mechanicIds: ["binding-web", "venom-purge", "hollow-collapse"], maxHp: 495, archetype: "web-caster",
   },
   "scrapking-goblin": {
     name: "Scrapking", title: "The Jagged Throne", icon: "⚒", accent: "#d7a34b",
-    summary: "Repositions between attacks and fires improvised blade lanes.", mechanics: ["Scrap Blade", "Junkyard Cross"], maxHp: 485, archetype: "duelist",
+    summary: "Repositions between attacks and fires improvised blade lanes.", mechanicIds: ["elemental-beam", "guardian-cross", "meteor-spread"], maxHp: 485, archetype: "duelist",
   },
   "warcaller-orc": {
     name: "Warcaller", title: "The Red Standard", icon: "⚑", accent: "#e4533f",
-    summary: "Tracks the party flank before cleaving single and crossed war lanes.", mechanics: ["Warpath Cleave", "Banner Cross"], maxHp: 500, archetype: "duelist",
+    summary: "Tracks the party flank before cleaving single and crossed war lanes.", mechanicIds: ["elemental-beam", "guardian-cross", "aetheric-soak"], maxHp: 500, archetype: "duelist",
   },
   "tuskmaw-orc": {
     name: "Tuskmaw", title: "The Breaker Below", icon: "◈", accent: "#9eb25d",
-    summary: "Rushes laterally and crushes three marked allies beneath tusk bursts.", mechanics: ["Tusk Rush", "Groundbreaker"], maxHp: 525, archetype: "crab",
+    summary: "Rushes laterally and crushes three marked allies beneath tusk bursts.", mechanicIds: ["sidewinder-rush", "crushing-tide", "destruction-pulse"], maxHp: 525, archetype: "crab",
   },
   "broodfang-spider": {
     name: "Broodfang", title: "The Silk Tyrant", icon: "✣", accent: "#b56cff",
-    summary: "Binds paired prey with silk before flooding safe ground with venom.", mechanics: ["Binding Web", "Venom Brood"], maxHp: 535, archetype: "web-caster",
+    summary: "Binds paired prey with silk before flooding safe ground with venom.", mechanicIds: ["binding-web", "venom-purge", "meteor-spread"], maxHp: 535, archetype: "web-caster",
   },
   "silkfang-spider": {
     name: "Silkfang", title: "The Gloom Weaver", icon: "✤", accent: "#9d68d8",
-    summary: "Snares paired allies before seeding the arena with toxic nests.", mechanics: ["Silk Snare", "Venom Nest"], maxHp: 505, archetype: "web-caster",
+    summary: "Snares paired allies before seeding the arena with toxic nests.", mechanicIds: ["binding-web", "venom-purge", "soul-siphon"], maxHp: 505, archetype: "web-caster",
   },
   "thorncrown-stag": {
     name: "Thorncrown", title: "The Briar Hart", icon: "♧", accent: "#7fc46b",
-    summary: "Charges through thorn lanes and leaps onto grouped prey.", mechanics: ["Briar Charge", "Crown Pounce"], maxHp: 510, archetype: "bull",
+    summary: "Charges through thorn lanes and leaps onto grouped prey.", mechanicIds: ["bull-charge", "crushing-pounce", "hollow-collapse"], maxHp: 510, archetype: "bull",
   },
   "sky-totem": {
     name: "Sky Totem", title: "The Hollow Idol", icon: "☼", accent: "#69d4d1",
-    summary: "Cuts the floor with spirit lanes and anchors hungry wind rifts.", mechanics: ["Spirit Scissors", "Wind Rifts"], maxHp: 505, archetype: "ghost",
+    summary: "Cuts the floor with spirit lanes and anchors hungry wind rifts.", mechanicIds: ["vine-scissors", "haunting-rifts", "prism-beam"], maxHp: 505, archetype: "ghost",
   },
   "razorcrest-raptor": {
     name: "Razorcrest", title: "The Hunting Circuit", icon: "➳", accent: "#d9c45a",
-    summary: "Rebounds through hunting lanes and tears open impact pools.", mechanics: ["Raptor Rush", "Talon Slam"], maxHp: 500, archetype: "ricochet",
+    summary: "Rebounds through hunting lanes and tears open impact pools.", mechanicIds: ["ricochet-rush", "meteor-slam", "prism-beam"], maxHp: 500, archetype: "ricochet",
   },
   "bristlequake-boar": {
     name: "Bristlequake", title: "The Iron Tusk", icon: "♞", accent: "#d47b45",
-    summary: "Breaks formation with armored rushes, quakes, and radial fault lines.", mechanics: ["Tusk Charge", "Bristle Quake"], maxHp: 545, archetype: "ram",
+    summary: "Breaks formation with armored rushes, quakes, and radial fault lines.", mechanicIds: ["destruction-rush", "ruin-quake", "destruction-pulse"], maxHp: 545, archetype: "ram",
   },
   "moonfang-wolf": {
     name: "Moonfang", title: "The Silver Pursuit", icon: "☾", accent: "#9db9e5",
-    summary: "Ricochets between marked lanes and leaves moonfire at each strike.", mechanics: ["Lunar Rush", "Moonfall"], maxHp: 495, archetype: "ricochet",
+    summary: "Ricochets between marked lanes and leaves moonfire at each strike.", mechanicIds: ["ricochet-rush", "meteor-slam", "soul-siphon"], maxHp: 495, archetype: "ricochet",
   },
   "frostmaw-yeti": {
     name: "Frostmaw", title: "The White Avalanche", icon: "❄", accent: "#8ed8ef",
-    summary: "Scuttles through ice lanes and buries spread allies beneath frost bursts.", mechanics: ["Avalanche Rush", "Frost Crush"], maxHp: 550, archetype: "crab",
+    summary: "Scuttles through ice lanes and buries spread allies beneath frost bursts.", mechanicIds: ["sidewinder-rush", "crushing-tide", "hollow-collapse"], maxHp: 550, archetype: "crab",
   },
   "rimeclaw-yeti": {
     name: "Rimeclaw", title: "The Frozen Duel", icon: "✥", accent: "#75bfe8",
-    summary: "Sidesteps between frost strikes before forming a lethal ice cross.", mechanics: ["Rime Blade", "Glacier Cross"], maxHp: 500, archetype: "duelist",
+    summary: "Sidesteps between frost strikes before forming a lethal ice cross.", mechanicIds: ["elemental-beam", "guardian-cross", "memory-sequence"], maxHp: 500, archetype: "duelist",
   },
 };
 

src/game/bossHome.test.ts

@@ -17,9 +17,7 @@ describe("boss home positioning", () => {
   it.each(AVAILABLE_BOSS_IDS)("moves %s back toward its center slot while idle", (bossId) => {
     const motion = createBossMotionState(bossId);
     motion.position = [7, 5];
-    motion.nextChargeAt = Number.POSITIVE_INFINITY;
     motion.nextMechanicAt = Number.POSITIVE_INFINITY;
-    motion.nextPoolMechanicAt = Number.POSITIVE_INFINITY;
     const before = Math.hypot(
       motion.position[0] - (ARENA_CENTER[0] + motion.formationOffsetX),
       motion.position[1] - ARENA_CENTER[1],

src/game/bossMechanics.ts

@@ -1,447 +1,53 @@
-import { BOSS_ARCHETYPE_BY_ID, BOSS_DEFINITIONS, type BossArchetype } from "./bossCatalog";
-import { clampToArena } from "./arena";
-import { advanceSkySweeperMechanics, createSkySweeperMotion, createSkySweeperState, upcomingSkySweeperMechanic } from "./bosses/skySweeper";
-import { advanceCinderbackMechanics, createCinderbackMotion, createCinderbackState, upcomingCinderbackMechanic } from "./bosses/ricochet";
-import { advanceCragclawMechanics, createCragclawMotion, createCragclawState, upcomingCragclawMechanic } from "./bosses/cragclawCrab";
-import { advanceCrownshardMechanics, createCrownshardMotion, createCrownshardState, upcomingCrownshardMechanic } from "./bosses/crownshardGolem";
-import { advanceEmberMantisMechanics, createEmberMantisMotion, createEmberMantisState, upcomingEmberMantisMechanic } from "./bosses/emberMantis";
-import { advanceMournveilMechanics, createMournveilMotion, createMournveilState, upcomingMournveilMechanic } from "./bosses/mournveilGhost";
-import { advanceObsidianRamMechanics, createObsidianRamMotion, createObsidianRamState, upcomingObsidianRamMechanic } from "./bosses/obsidianRamGolem";
-import { advanceSandglassMechanics, createSandglassMotion, createSandglassState, upcomingSandglassMechanic } from "./bosses/sandglassScorpion";
-import { createBaseMotion, returnBossToArenaCenter } from "./bosses/shared";
-import { advancePooledBossMechanics, upcomingPooledMechanic } from "./bosses/mechanicPool";
-import type { BossMechanicContext, BossMechanicEvent, BossMechanicResult } from "./bosses/types";
-import { advanceVexaMechanics, createVexaMotion, createVexaState, dropVexaVenomPool, upcomingVexaMechanic } from "./bosses/vexa";
-import { distance, moveToward, pointToSegmentDistance } from "./geometry";
-import type { BossId, BossMotionState, BossState, MemberId, PartyMember, WorldPosition } from "./types";
+import { BOSS_DEFINITIONS } from "./bossCatalog";
+import {
+  advanceMechanicLoadout,
+  BOSS_MECHANIC_REGISTRY,
+  BULL_CHARGE,
+  BULL_POUNCE,
+  handleMechanicDispel,
+  upcomingLoadoutMechanic,
+} from "./bosses/mechanicPool";
+import { createBaseMotion } from "./bosses/shared";
+import type { BossMechanicContext, BossMechanicResult } from "./bosses/types";
+import type { BossId, BossMotionState, BossState, MemberId, WorldPosition } from "./types";
 
-export const BULL_CHARGE = {
-  firstAt: 7,
-  repeatDelay: 4,
-  telegraphDuration: 1.8,
-  distance: 13.5,
-  speed: 10.5,
-  hitRadius: 1.35,
-  damage: 18,
-  knockdownDuration: 0.75,
-  aiClearance: 1.9,
-  aiEvadeSpeed: 3.4,
-} as const;
-
-export const BULL_POUNCE = {
-  afterCharges: 3,
-  stackDuration: 5,
-  stackRadius: 2.2,
-  sharedDamage: 200,
-  leapDuration: 0.55,
-} as const;
-
-export const BOSS_PERIODIC_MECHANICS = {
-  melee: { firstAt: 2, interval: 2.5, damage: 15 },
-  nova: { firstAt: 9, interval: 12, damage: 13 },
-  brand: { firstAt: 5, interval: 9, duration: 7, tickDamage: 6 },
-} as const;
-
-const CHARGE_TARGET_ORDER: readonly MemberId[] = ["nia", "orin", "vale", "aelia", "brann"];
-const POUNCE_TARGET_ORDER: readonly MemberId[] = ["aelia", "nia", "orin", "vale", "brann"];
+export { BOSS_MECHANIC_REGISTRY, BULL_CHARGE, BULL_POUNCE };
 
 export function createBossState(bossId: BossId = "bulldrome"): BossState {
   const definition = BOSS_DEFINITIONS[bossId];
-  const archetype = BOSS_ARCHETYPE_BY_ID[bossId];
-  let state: BossState;
-  if (archetype === "web-caster") state = createVexaState(bossId);
-  else if (archetype === "sky-sweeper") state = createSkySweeperState(bossId);
-  else if (archetype === "duelist") state = createEmberMantisState(bossId);
-  else if (archetype === "ram") state = createObsidianRamState(bossId);
-  else if (archetype === "ricochet") state = createCinderbackState(bossId);
-  else if (archetype === "burrower") state = createSandglassState();
-  else if (archetype === "crab") state = createCragclawState();
-  else if (archetype === "ghost") state = createMournveilState();
-  else if (archetype === "golem") state = createCrownshardState();
-  else {
-    state = {
-      id: bossId,
-      name: definition.name,
-      maxHp: definition.maxHp,
-      hp: definition.maxHp,
-      nextMeleeAt: BOSS_PERIODIC_MECHANICS.melee.firstAt,
-      nextNovaAt: BOSS_PERIODIC_MECHANICS.nova.firstAt,
-      nextBrandAt: BOSS_PERIODIC_MECHANICS.brand.firstAt,
-      brandCount: 0,
-    };
-  }
-  return { ...state, id: bossId, name: definition.name, maxHp: definition.maxHp, hp: definition.maxHp };
+  return {
+    id: bossId,
+    name: definition.name,
+    maxHp: definition.maxHp,
+    hp: definition.maxHp,
+    nextMeleeAt: 2,
+  };
 }
 
 export function createBossMotionState(bossId: BossId = "bulldrome"): BossMotionState {
-  const archetype = BOSS_ARCHETYPE_BY_ID[bossId];
-  let motion: BossMotionState;
-  if (archetype === "web-caster") motion = createVexaMotion(bossId);
-  else if (archetype === "sky-sweeper") motion = createSkySweeperMotion(bossId);
-  else if (archetype === "duelist") motion = createEmberMantisMotion(bossId);
-  else if (archetype === "ram") motion = createObsidianRamMotion(bossId);
-  else if (archetype === "ricochet") motion = createCinderbackMotion(bossId);
-  else if (archetype === "burrower") motion = createSandglassMotion();
-  else if (archetype === "crab") motion = createCragclawMotion();
-  else if (archetype === "ghost") motion = createMournveilMotion();
-  else if (archetype === "golem") motion = createCrownshardMotion();
-  else motion = {
-    ...createBaseMotion("bulldrome"),
-    mode: "holding",
-    position: [0, -8.2],
-    chargeStart: [0, -8.2],
-    chargeEnd: [0, 5.5],
-    chargeTargetId: "nia",
-    chargeHitIds: [],
-    phaseEndsAt: 0,
-    nextChargeAt: BULL_CHARGE.firstAt,
-    chargeCount: 0,
-    chargesSincePounce: 0,
-    pounceTargetId: "aelia",
-    pounceCenter: [0, 4.5],
-    pounceCount: 0,
+  return {
+    ...createBaseMotion(bossId),
+    position: [0, -6.8],
+    chargeStart: [0, -6.8],
+    nextMechanicAt: 5,
   };
-  return { ...motion, bossId };
-}
-
-function mechanicArchetype(bossId: BossId): BossArchetype {
-  return BOSS_ARCHETYPE_BY_ID[bossId];
-}
-
-function chargeEndpoint(start: WorldPosition, target: WorldPosition): WorldPosition {
-  const dx = target[0] - start[0];
-  const dz = target[1] - start[1];
-  const length = Math.max(0.001, Math.hypot(dx, dz));
-  return clampToArena([
-    start[0] + (dx / length) * BULL_CHARGE.distance,
-    start[1] + (dz / length) * BULL_CHARGE.distance,
-  ]);
-}
-
-function livingMember(party: PartyMember[], memberId: MemberId) {
-  return party.find((member) => member.id === memberId && member.hp > 0);
-}
-
-function chooseTarget(party: PartyMember[], order: readonly MemberId[], startIndex: number): MemberId {
-  for (let offset = 0; offset < order.length; offset += 1) {
-    const candidate = order[(startIndex + offset) % order.length];
-    if (livingMember(party, candidate)) return candidate;
-  }
-  return order[0];
-}
-
-function advanceMotionMechanics(
-  source: BossMotionState,
-  party: PartyMember[],
-  partyPositions: Record<MemberId, WorldPosition>,
-  time: number,
-  delta: number,
-  damageMember: BossMechanicContext["damageMember"],
-  events: BossMechanicEvent[],
-) {
-  let motion: BossMotionState = {
-    ...source,
-    position: [source.position[0], source.position[1]],
-    chargeStart: [source.chargeStart[0], source.chargeStart[1]],
-    chargeEnd: [source.chargeEnd[0], source.chargeEnd[1]],
-    chargeHitIds: [...source.chargeHitIds],
-    pounceCenter: [source.pounceCenter[0], source.pounceCenter[1]],
-  };
-  let updatedParty = party;
-
-  if (motion.mode === "holding") {
-    returnBossToArenaCenter(motion, delta, 1.8);
-    if (time >= motion.nextChargeAt) {
-      const targetId = chooseTarget(updatedParty, CHARGE_TARGET_ORDER, motion.chargeCount);
-      const target = partyPositions[targetId];
-      const targetName = updatedParty.find((member) => member.id === targetId)?.name ?? targetId;
-      motion = {
-        ...motion,
-        mode: "telegraph",
-        chargeStart: [motion.position[0], motion.position[1]],
-        chargeEnd: chargeEndpoint(motion.position, target),
-        chargeTargetId: targetId,
-        chargeHitIds: [],
-        phaseEndsAt: time + BULL_CHARGE.telegraphDuration,
-        nextChargeAt: Number.POSITIVE_INFINITY,
-        chargeCount: motion.chargeCount + 1,
-        chargesSincePounce: motion.chargesSincePounce + 1,
-      };
-      events.push({
-        at: time,
-        message: `Bulldrome lines up a charge on ${targetName}.`,
-        tone: "danger",
-        pulseKind: "charge",
-        targetId,
-      });
-    }
-  } else if (motion.mode === "telegraph" && time >= motion.phaseEndsAt) {
-    const chargeDuration = distance(motion.chargeStart, motion.chargeEnd) / BULL_CHARGE.speed;
-    motion = { ...motion, mode: "charging", phaseEndsAt: time + chargeDuration };
-    events.push({ at: time, message: "Bulldrome charges! Clear the marked lane.", tone: "danger" });
-  } else if (motion.mode === "charging") {
-    const previousPosition: WorldPosition = [motion.position[0], motion.position[1]];
-    motion.position = moveToward(motion.position, motion.chargeEnd, BULL_CHARGE.speed * delta);
-    updatedParty = updatedParty.map((member) => {
-      if (member.hp <= 0 || motion.chargeHitIds.includes(member.id)) return member;
-      if (pointToSegmentDistance(partyPositions[member.id], previousPosition, motion.position) > BULL_CHARGE.hitRadius) {
-        return member;
-      }
-      motion.chargeHitIds = [...motion.chargeHitIds, member.id];
-      events.push({
-        at: time,
-        message: `${member.name} is knocked down by the charge.`,
-        tone: "danger",
-        pulseKind: "charge",
-        targetId: member.id,
-      });
-      return {
-        ...damageMember(member, BULL_CHARGE.damage, partyPositions[member.id], time),
-        knockedUntil: time + BULL_CHARGE.knockdownDuration,
-      };
-    });
-    if (distance(motion.position, motion.chargeEnd) < 0.05 || time >= motion.phaseEndsAt) {
-      motion = { ...motion, position: [motion.chargeEnd[0], motion.chargeEnd[1]], mode: "returning", phaseEndsAt: 0 };
-    }
-  } else if (motion.mode === "returning") {
-    if (returnBossToArenaCenter(motion, delta, 4.4)) {
-      if (motion.chargesSincePounce >= BULL_POUNCE.afterCharges) {
-        const targetId = chooseTarget(updatedParty, POUNCE_TARGET_ORDER, motion.pounceCount);
-        const targetName = updatedParty.find((member) => member.id === targetId)?.name ?? targetId;
-        motion = {
-          ...motion,
-          mode: "stacking",
-          phaseEndsAt: time + BULL_POUNCE.stackDuration,
-          nextChargeAt: Number.POSITIVE_INFINITY,
-          chargesSincePounce: 0,
-          pounceTargetId: targetId,
-          pounceCenter: [partyPositions[targetId][0], partyPositions[targetId][1]],
-          pounceCount: motion.pounceCount + 1,
-        };
-        events.push({
-          at: time,
-          message: `Bulldrome marks ${targetName}. Stack inside the circle!`,
-          tone: "danger",
-          pulseKind: "pounce",
-          targetId,
-        });
-      } else {
-        motion = {
-          ...motion,
-          mode: "holding",
-          nextChargeAt: time + BULL_CHARGE.repeatDelay,
-        };
-        events.push({ at: time, message: "Bulldrome returns to Brann and paws at the stone." });
-      }
-    }
-  } else if (motion.mode === "stacking") {
-    motion.pounceCenter = [partyPositions[motion.pounceTargetId][0], partyPositions[motion.pounceTargetId][1]];
-    if (time >= motion.phaseEndsAt) {
-      const targetName = updatedParty.find((member) => member.id === motion.pounceTargetId)?.name ?? motion.pounceTargetId;
-      motion = {
-        ...motion,
-        mode: "pouncing",
-        chargeStart: [motion.position[0], motion.position[1]],
-        chargeEnd: [motion.pounceCenter[0], motion.pounceCenter[1]],
-        phaseEndsAt: time + BULL_POUNCE.leapDuration,
-      };
-      events.push({ at: time, message: `Bulldrome leaps at ${targetName}!`, tone: "danger" });
-    }
-  } else if (motion.mode === "pouncing") {
-    const leapDistance = distance(motion.chargeStart, motion.chargeEnd);
-    const leapSpeed = Math.max(12, leapDistance / BULL_POUNCE.leapDuration);
-    motion.position = moveToward(motion.position, motion.chargeEnd, leapSpeed * delta);
-    if (distance(motion.position, motion.chargeEnd) < 0.05 || time >= motion.phaseEndsAt) {
-      const stackedIds = updatedParty
-        .filter((member) => member.hp > 0 && distance(partyPositions[member.id], motion.pounceCenter) <= BULL_POUNCE.stackRadius)
-        .map((member) => member.id);
-      const sharedDamage = BULL_POUNCE.sharedDamage / Math.max(1, stackedIds.length);
-      updatedParty = updatedParty.map((member) => stackedIds.includes(member.id)
-        ? damageMember(member, sharedDamage, partyPositions[member.id], time)
-        : member);
-      motion = {
-        ...motion,
-        position: [motion.chargeEnd[0], motion.chargeEnd[1]],
-        mode: "returning",
-        phaseEndsAt: 0,
-      };
-      events.push({
-        at: time,
-        message: `Bulldrome pounces for ${Math.round(sharedDamage)} damage across ${stackedIds.length} stacked allies.`,
-        tone: "danger",
-        pulseKind: "pounce",
-        targetId: motion.pounceTargetId,
-      });
-    }
-  }
-
-  return { motion, party: updatedParty };
-}
-
-function resolvePeriodicMechanics(
-  boss: BossState,
-  motion: BossMotionState,
-  party: PartyMember[],
-  partyPositions: Record<MemberId, WorldPosition>,
-  time: number,
-  damageMember: BossMechanicContext["damageMember"],
-  events: BossMechanicEvent[],
-) {
-  let updatedParty = party;
-
-  while (boss.nextMeleeAt <= time) {
-    if (motion.mode === "holding") {
-      const tankIndex = updatedParty.findIndex((member) => member.id === "brann");
-      updatedParty[tankIndex] = damageMember(
-        updatedParty[tankIndex],
-        BOSS_PERIODIC_MECHANICS.melee.damage,
-        partyPositions.brann,
-        boss.nextMeleeAt,
-      );
-    }
-    boss.nextMeleeAt += BOSS_PERIODIC_MECHANICS.melee.interval;
-  }
-
-  while (boss.nextNovaAt <= time) {
-    updatedParty = updatedParty.map((member) => damageMember(
-      member,
-      BOSS_PERIODIC_MECHANICS.nova.damage,
-      partyPositions[member.id],
-      boss.nextNovaAt,
-    ));
-    events.push({
-      at: boss.nextNovaAt,
-      message: "Cinder Nova strikes the party.",
-      tone: "danger",
-      pulseKind: "boss",
-    });
-    boss.nextNovaAt += BOSS_PERIODIC_MECHANICS.nova.interval;
-  }
-
-  while (boss.nextBrandAt <= time) {
-    const targetId = CHARGE_TARGET_ORDER[boss.brandCount % CHARGE_TARGET_ORDER.length];
-    const targetIndex = updatedParty.findIndex((member) => member.id === targetId);
-    if (updatedParty[targetIndex].hp > 0) {
-      const appliedAt = boss.nextBrandAt;
-      updatedParty[targetIndex] = {
-        ...updatedParty[targetIndex],
-        debuffs: [
-          ...updatedParty[targetIndex].debuffs,
-          {
-            id: `brand-${boss.brandCount}`,
-            name: "Ember Brand",
-            expiresAt: appliedAt + BOSS_PERIODIC_MECHANICS.brand.duration,
-            nextTickAt: appliedAt + 1,
-            tickDamage: BOSS_PERIODIC_MECHANICS.brand.tickDamage,
-          },
-        ],
-      };
-      events.push({
-        at: appliedAt,
-        message: `Ember Brand afflicts ${updatedParty[targetIndex].name}.`,
-        tone: "danger",
-        pulseKind: "debuff",
-        targetId,
-      });
-    }
-    boss.brandCount += 1;
-    boss.nextBrandAt += BOSS_PERIODIC_MECHANICS.brand.interval;
-  }
-  return updatedParty;
-}
-
-function advanceBulldromeMechanics(context: BossMechanicContext): BossMechanicResult {
-  const boss = { ...context.boss };
-  const events: BossMechanicEvent[] = [];
-  const motionResult = advanceMotionMechanics(
-    context.motion,
-    context.party,
-    context.partyPositions,
-    context.time,
-    context.delta,
-    context.damageMember,
-    events,
-  );
-  const party = resolvePeriodicMechanics(
-    boss,
-    motionResult.motion,
-    motionResult.party,
-    context.partyPositions,
-    context.time,
-    context.damageMember,
-    events,
-  );
-  return { boss, motion: motionResult.motion, party, events };
 }
 
 export function advanceBossMechanics(context: BossMechanicContext): BossMechanicResult {
-  const archetype = mechanicArchetype(context.boss.id);
-  const result = archetype === "web-caster" ? advanceVexaMechanics(context)
-    : archetype === "sky-sweeper" ? advanceSkySweeperMechanics(context)
-      : archetype === "duelist" ? advanceEmberMantisMechanics(context)
-        : archetype === "ram" ? advanceObsidianRamMechanics(context)
-          : archetype === "ricochet" ? advanceCinderbackMechanics(context)
-            : archetype === "burrower" ? advanceSandglassMechanics(context)
-              : archetype === "crab" ? advanceCragclawMechanics(context)
-                : archetype === "ghost" ? advanceMournveilMechanics(context)
-                  : archetype === "golem" ? advanceCrownshardMechanics(context)
-                    : advanceBulldromeMechanics(context);
-  return advancePooledBossMechanics(context, result);
+  return advanceMechanicLoadout(context, BOSS_DEFINITIONS[context.boss.id].mechanicIds);
 }
 
 export function handleBossDispel(
-  bossId: BossId,
+  _bossId: BossId,
   motion: BossMotionState,
   memberId: MemberId,
   position: WorldPosition,
   time: number,
   debuffNames: readonly string[],
 ) {
-  if (mechanicArchetype(bossId) === "web-caster" && debuffNames.includes("Widow Venom")) {
-    return {
-      motion: dropVexaVenomPool(motion, memberId, [position[0], position[1]], time),
-      message: "Widow Venom purged. A venom pool forms where the target stood.",
-    };
-  }
-  return { motion, message: "Harmful magic removed." };
+  return handleMechanicDispel(motion, memberId, position, time, debuffNames);
 }
 
 export function upcomingMechanic(boss: BossState, motion: BossMotionState, time: number) {
-  const pooled = upcomingPooledMechanic(motion, time);
-  if (pooled) return pooled;
-  const archetype = mechanicArchetype(boss.id);
-  if (archetype === "web-caster") return upcomingVexaMechanic(boss, motion, time);
-  if (archetype === "sky-sweeper") return upcomingSkySweeperMechanic(boss, motion, time);
-  if (archetype === "duelist") return upcomingEmberMantisMechanic(boss, motion, time);
-  if (archetype === "ram") return upcomingObsidianRamMechanic(boss, motion, time);
-  if (archetype === "ricochet") return upcomingCinderbackMechanic(boss, motion, time);
-  if (archetype === "burrower") return upcomingSandglassMechanic(boss, motion, time);
-  if (archetype === "crab") return upcomingCragclawMechanic(boss, motion, time);
-  if (archetype === "ghost") return upcomingMournveilMechanic(boss, motion, time);
-  if (archetype === "golem") return upcomingCrownshardMechanic(boss, motion, time);
-  if (motion.mode === "telegraph") {
-    return { name: "Bull Charge", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: BULL_CHARGE.telegraphDuration, urgent: true };
-  }
-  if (motion.mode === "charging") {
-    return { name: "Charge active", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: 1.2, urgent: true };
-  }
-  if (motion.mode === "stacking") {
-    const names: Record<MemberId, string> = { aelia: "Aelia", brann: "Brann", nia: "Nia", orin: "Orin", vale: "Vale" };
-    return { name: `Stack on ${names[motion.pounceTargetId]}`, remaining: Math.max(0, motion.phaseEndsAt - time), cycle: BULL_POUNCE.stackDuration, urgent: true };
-  }
-  if (motion.mode === "pouncing") {
-    return { name: "Bulldrome Pounce", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: 0.75, urgent: true };
-  }
-  const candidates: Array<{ name: string; remaining: number; cycle: number }> = [
-    { name: "Cinder Nova", remaining: Math.max(0, boss.nextNovaAt - time), cycle: BOSS_PERIODIC_MECHANICS.nova.interval },
-    { name: "Ember Brand", remaining: Math.max(0, boss.nextBrandAt - time), cycle: BOSS_PERIODIC_MECHANICS.brand.interval },
-  ];
-  if (motion.mode === "holding" && Number.isFinite(motion.nextChargeAt)) {
-    candidates.push({ name: "Bull Charge", remaining: Math.max(0, motion.nextChargeAt - time), cycle: BULL_CHARGE.firstAt + 1 });
-  }
-  let next = candidates[0];
-  for (let index = 1; index < candidates.length; index += 1) {
-    if (candidates[index].remaining < next.remaining) next = candidates[index];
-  }
-  return { ...next, urgent: next.remaining < 2.5 };
+  return upcomingLoadoutMechanic(BOSS_DEFINITIONS[boss.id].mechanicIds, motion, time);
 }

src/game/bosses/claudecraftBossTrio.test.ts

@@ -1,113 +0,0 @@
-import { describe, expect, it } from "vitest";
-import { freshParty } from "../data";
-import type { BossMotionState, BossState, WorldPosition } from "../types";
-import { advanceCragclawMechanics, CRAGCLAW, createCragclawMotion, createCragclawState } from "./cragclawCrab";
-import { advanceCrownshardMechanics, CROWNSHARD, createCrownshardMotion, createCrownshardState } from "./crownshardGolem";
-import { advanceMournveilMechanics, createMournveilMotion, createMournveilState, MOURNVEIL } from "./mournveilGhost";
-import type { BossMechanicContext } from "./types";
-
-const POSITIONS: BossMechanicContext["partyPositions"] = {
-  aelia: [0, 4.5],
-  brann: [0, 0],
-  nia: [-3, 2],
-  orin: [3, 2],
-  vale: [0, -2],
-};
-
-function context(
-  boss: BossState,
-  motion: BossMotionState,
-  time: number,
-  delta = 0.1,
-  positions = POSITIONS,
-  party = freshParty(),
-): BossMechanicContext {
-  return {
-    boss,
-    motion,
-    party,
-    partyPositions: structuredClone(positions),
-    time,
-    delta,
-    damageMember: (member, amount) => ({ ...member, hp: Math.max(0, member.hp - amount) }),
-  };
-}
-
-describe("ClaudeCraft boss trio mechanics", () => {
-  it("telegraphs and resolves Cragclaw Sidewinder Rush", () => {
-    const start = advanceCragclawMechanics(context(createCragclawState(), createCragclawMotion(), CRAGCLAW.firstAt));
-    expect(start.motion.mode).toBe("crab_scuttle_telegraph");
-    expect(start.motion.slashLanes).toHaveLength(1);
-
-    const active = advanceCragclawMechanics(context(start.boss, start.motion, start.motion.phaseEndsAt, 0.1, POSITIONS, start.party));
-    expect(active.motion.mode).toBe("crab_scuttling");
-    const niaBefore = active.party.find((member) => member.id === "nia")!.hp;
-    const impact = advanceCragclawMechanics(context(active.boss, active.motion, active.motion.phaseEndsAt, 2, POSITIONS, active.party));
-    expect(impact.party.find((member) => member.id === "nia")!.hp).toBe(niaBefore - CRAGCLAW.scuttleDamage);
-  });
-
-  it("places three Crushing Tide warnings on party positions", () => {
-    const motion = { ...createCragclawMotion(), mechanicCount: 1, nextMechanicAt: 0 };
-    const start = advanceCragclawMechanics(context(createCragclawState(), motion, 0));
-    expect(start.motion.mode).toBe("crab_tidal_burst");
-    expect(start.motion.hazards.filter((hazard) => hazard.kind === "tidal_burst")).toHaveLength(3);
-
-    const positions = structuredClone(POSITIONS);
-    positions.aelia = [...start.motion.hazards[0].center] as WorldPosition;
-    const hpBefore = start.party.find((member) => member.id === "aelia")!.hp;
-    const impact = advanceCragclawMechanics(context(start.boss, start.motion, CRAGCLAW.tidalWarning + 0.05, 0.1, positions, start.party));
-    expect(impact.party.find((member) => member.id === "aelia")!.hp).toBe(hpBefore - CRAGCLAW.tidalDamage);
-  });
-
-  it("rotates Mournveil Soul Scissors for a second crossing pattern", () => {
-    const start = advanceMournveilMechanics(context(createMournveilState(), createMournveilMotion(), MOURNVEIL.firstAt));
-    const firstLaneIds = start.motion.slashLanes.map((lane) => lane.id);
-    expect(start.motion.mode).toBe("ghost_soul_cross");
-    expect(start.motion.slashLanes).toHaveLength(2);
-
-    const followup = advanceMournveilMechanics(context(start.boss, start.motion, start.motion.phaseEndsAt, 0.1, POSITIONS, start.party));
-    expect(followup.motion.mode).toBe("ghost_soul_cross_followup");
-    expect(followup.motion.slashLanes).toHaveLength(2);
-    expect(followup.motion.slashLanes.map((lane) => lane.id)).not.toEqual(firstLaneIds);
-
-    const resolved = advanceMournveilMechanics(context(followup.boss, followup.motion, followup.motion.phaseEndsAt, 0.1, POSITIONS, followup.party));
-    expect(resolved.motion.mode).toBe("ghost_recover");
-  });
-
-  it("opens two persistent Haunting Rifts", () => {
-    const motion = { ...createMournveilMotion(), mechanicCount: 1, nextMechanicAt: 0 };
-    const start = advanceMournveilMechanics(context(createMournveilState(), motion, 0));
-    const rifts = start.motion.hazards.filter((hazard) => hazard.kind === "soul_rift");
-    expect(start.motion.mode).toBe("ghost_haunting");
-    expect(rifts).toHaveLength(2);
-    expect(rifts[0].expiresAt - rifts[0].activatesAt).toBe(MOURNVEIL.riftDuration);
-  });
-
-  it("builds three non-overlapping Crownshard shockwave bands", () => {
-    const start = advanceCrownshardMechanics(context(createCrownshardState(), createCrownshardMotion(), CROWNSHARD.firstAt));
-    const rings = start.motion.hazards.filter((hazard) => hazard.kind === "royal_shockwave");
-    expect(start.motion.mode).toBe("golem_shockwave");
-    expect(rings).toHaveLength(3);
-    expect(rings.map((ring) => [ring.innerRadius ?? 0, ring.radius])).toEqual([[0, 2.35], [2.35, 4.7], [4.7, 7.05]]);
-
-    const positions = structuredClone(POSITIONS);
-    positions.aelia = [...rings[0].center];
-    positions.nia = [rings[0].center[0] + 3, rings[0].center[1]];
-    const first = advanceCrownshardMechanics(context(start.boss, start.motion, rings[0].activatesAt + 0.05, 0.1, positions, start.party));
-    const aeliaAfterFirst = first.party.find((member) => member.id === "aelia")!.hp;
-    const niaAfterFirst = first.party.find((member) => member.id === "nia")!.hp;
-    expect(aeliaAfterFirst).toBe(start.party.find((member) => member.id === "aelia")!.hp - CROWNSHARD.shockwaveDamage);
-    expect(niaAfterFirst).toBe(start.party.find((member) => member.id === "nia")!.hp);
-
-    const second = advanceCrownshardMechanics(context(first.boss, first.motion, rings[1].activatesAt + 0.05, 0.1, positions, first.party));
-    expect(second.party.find((member) => member.id === "aelia")!.hp).toBe(aeliaAfterFirst);
-    expect(second.party.find((member) => member.id === "nia")!.hp).toBe(niaAfterFirst - CROWNSHARD.shockwaveDamage);
-  });
-
-  it("marks three allies with Crownfall", () => {
-    const motion = { ...createCrownshardMotion(), mechanicCount: 1, nextMechanicAt: 0 };
-    const result = advanceCrownshardMechanics(context(createCrownshardState(), motion, 0));
-    expect(result.motion.mode).toBe("golem_crownfall");
-    expect(result.motion.hazards.filter((hazard) => hazard.kind === "crownfall")).toHaveLength(3);
-  });
-});

src/game/bosses/cragclawCrab.ts

@@ -1,146 +0,0 @@
-import { clampToArena } from "../arena";
-import { BOSS_DEFINITIONS } from "../bossCatalog";
-import { angleTo, distance, moveToward, pointToSegmentDistance } from "../geometry";
-import type { BossMotionState, BossState, MemberId, SlashLane, WorldPosition } from "../types";
-import { applyMelee, chooseLivingTarget, cloneMotion, createBaseMotion, createBossStateFor, createCircleHazard, memberName, resolveCircleHazards, returnBossToArenaCenter } from "./shared";
-import type { BossMechanicContext, BossMechanicResult, UpcomingMechanic } from "./types";
-
-export const CRAGCLAW = {
-  firstAt: 5.1,
-  repeatDelay: 3.7,
-  scuttleWarning: 1.35,
-  scuttleSpeed: 11.8,
-  scuttleDistance: 13,
-  scuttleWidth: 2.35,
-  scuttleDamage: 24,
-  tidalWarning: 1.45,
-  tidalRadius: 1.7,
-  tidalDamage: 26,
-  recoverDuration: 0.72,
-} as const;
-
-const SCUTTLE_TARGETS: readonly MemberId[] = ["nia", "orin", "aelia", "vale", "brann"];
-const TIDAL_TARGETS: readonly (readonly MemberId[])[] = [
-  ["aelia", "nia", "orin"],
-  ["brann", "vale", "aelia"],
-  ["nia", "orin", "vale"],
-];
-
-export function createCragclawState(): BossState {
-  const definition = BOSS_DEFINITIONS["cragclaw-crab"];
-  return createBossStateFor(definition.id, definition.name, definition.maxHp, 2.3);
-}
-
-export function createCragclawMotion(): BossMotionState {
-  return { ...createBaseMotion("cragclaw-crab"), position: [0, -6.4], nextMechanicAt: CRAGCLAW.firstAt };
-}
-
-function scuttleEnd(start: WorldPosition, target: WorldPosition): WorldPosition {
-  const angle = angleTo(start, target);
-  return clampToArena([
-    start[0] + Math.sin(angle) * CRAGCLAW.scuttleDistance,
-    start[1] + Math.cos(angle) * CRAGCLAW.scuttleDistance,
-  ]);
-}
-
-function beginMechanic(motion: BossMotionState, context: BossMechanicContext, events: BossMechanicResult["events"]) {
-  const mechanicCount = motion.mechanicCount + 1;
-  if (motion.mechanicCount % 2 === 0) {
-    const targetId = chooseLivingTarget(context.party, SCUTTLE_TARGETS, motion.mechanicCount);
-    const end = scuttleEnd(motion.position, context.partyPositions[targetId]);
-    const lane: SlashLane = {
-      id: `cragclaw-scuttle-${mechanicCount}`,
-      start: [...motion.position],
-      end,
-      width: CRAGCLAW.scuttleWidth,
-      damage: CRAGCLAW.scuttleDamage,
-    };
-    events.push({ at: context.time, message: `Cragclaw lines up Sidewinder Rush on ${memberName(context.party, targetId)}.`, tone: "danger", pulseKind: "charge", targetId });
-    return {
-      ...motion,
-      mode: "crab_scuttle_telegraph" as const,
-      chargeTargetId: targetId,
-      chargeStart: [...motion.position] as WorldPosition,
-      chargeEnd: end,
-      chargeHitIds: [],
-      slashLanes: [lane],
-      phaseStartedAt: context.time,
-      phaseEndsAt: context.time + CRAGCLAW.scuttleWarning,
-      nextMechanicAt: Number.POSITIVE_INFINITY,
-      mechanicCount,
-    };
-  }
-
-  const activatesAt = context.time + CRAGCLAW.tidalWarning;
-  const targetSet = TIDAL_TARGETS[Math.floor(motion.mechanicCount / 2) % TIDAL_TARGETS.length];
-  events.push({ at: context.time, message: "Crushing Tide marks three allies. Spread before the claws close.", tone: "danger", pulseKind: "skyfall" });
-  return {
-    ...motion,
-    mode: "crab_tidal_burst" as const,
-    phaseStartedAt: context.time,
-    phaseEndsAt: activatesAt + 0.3,
-    nextMechanicAt: Number.POSITIVE_INFINITY,
-    mechanicCount,
-    hazards: [
-      ...motion.hazards,
-      ...targetSet.map((targetId, index) => createCircleHazard({
-        id: `cragclaw-tide-${mechanicCount}-${index}`,
-        kind: "tidal_burst",
-        center: context.partyPositions[targetId],
-        radius: CRAGCLAW.tidalRadius,
-        activatesAt,
-        duration: 0.3,
-        damage: CRAGCLAW.tidalDamage,
-      })),
-    ],
-  };
-}
-
-export function advanceCragclawMechanics(context: BossMechanicContext): BossMechanicResult {
-  const boss = { ...context.boss };
-  let motion = cloneMotion(context.motion);
-  const events: BossMechanicResult["events"] = [];
-  let party = context.party;
-
-  if (motion.mode === "holding") {
-    returnBossToArenaCenter(motion, context.delta, 2.05);
-    if (context.time >= motion.nextMechanicAt) motion = beginMechanic(motion, { ...context, party }, events);
-  } else if (motion.mode === "crab_scuttle_telegraph" && context.time >= motion.phaseEndsAt) {
-    motion = {
-      ...motion,
-      mode: "crab_scuttling",
-      phaseStartedAt: context.time,
-      phaseEndsAt: context.time + distance(motion.position, motion.chargeEnd) / CRAGCLAW.scuttleSpeed,
-    };
-    events.push({ at: context.time, message: "Sidewinder Rush! Clear the surf lane.", tone: "danger", pulseKind: "charge" });
-  } else if (motion.mode === "crab_scuttling") {
-    const previous = [...motion.position] as WorldPosition;
-    motion.position = moveToward(motion.position, motion.chargeEnd, CRAGCLAW.scuttleSpeed * context.delta);
-    party = party.map((member) => {
-      if (member.hp <= 0 || motion.chargeHitIds.includes(member.id)) return member;
-      if (pointToSegmentDistance(context.partyPositions[member.id], previous, motion.position) > CRAGCLAW.scuttleWidth * 0.5) return member;
-      motion.chargeHitIds.push(member.id);
-      events.push({ at: context.time, message: `${member.name} is crushed by Sidewinder Rush.`, tone: "danger", pulseKind: "charge", targetId: member.id });
-      return { ...context.damageMember(member, CRAGCLAW.scuttleDamage, context.partyPositions[member.id], context.time), knockedUntil: context.time + 0.42 };
-    });
-    if (distance(motion.position, motion.chargeEnd) < 0.08 || context.time >= motion.phaseEndsAt) {
-      motion = { ...motion, position: [...motion.chargeEnd], mode: "crab_recover", phaseEndsAt: context.time + CRAGCLAW.recoverDuration };
-    }
-  } else if (motion.mode === "crab_tidal_burst" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "crab_recover", phaseEndsAt: context.time + CRAGCLAW.recoverDuration };
-  } else if (motion.mode === "crab_recover" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "holding", phaseEndsAt: 0, nextMechanicAt: context.time + CRAGCLAW.repeatDelay, slashLanes: [], chargeHitIds: [] };
-  }
-
-  party = resolveCircleHazards(motion, party, context.partyPositions, context.time, context.damageMember, events);
-  applyMelee(boss, motion, party, context.partyPositions, context.time, 2.2, 14, context.damageMember);
-  return { boss, motion, party, events };
-}
-
-export function upcomingCragclawMechanic(_boss: BossState, motion: BossMotionState, time: number): UpcomingMechanic {
-  if (motion.mode === "crab_scuttle_telegraph" || motion.mode === "crab_scuttling") return { name: "Sidewinder Rush — clear lane", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: CRAGCLAW.scuttleWarning, urgent: true };
-  if (motion.mode === "crab_tidal_burst") return { name: "Crushing Tide — spread", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: CRAGCLAW.tidalWarning, urgent: true };
-  if (motion.mode === "crab_recover") return { name: "Cragclaw exposed", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: CRAGCLAW.recoverDuration, urgent: false };
-  const remaining = Math.max(0, motion.nextMechanicAt - time);
-  return { name: motion.mechanicCount % 2 === 0 ? "Sidewinder Rush" : "Crushing Tide", remaining, cycle: CRAGCLAW.repeatDelay + CRAGCLAW.scuttleWarning, urgent: remaining < 2.5 };
-}

src/game/bosses/crownshardGolem.ts

@@ -1,117 +0,0 @@
-import { BOSS_DEFINITIONS } from "../bossCatalog";
-import type { BossMotionState, BossState, MemberId } from "../types";
-import { applyMelee, cloneMotion, createBaseMotion, createBossStateFor, createCircleHazard, resolveCircleHazards, returnBossToArenaCenter } from "./shared";
-import type { BossMechanicContext, BossMechanicResult, UpcomingMechanic } from "./types";
-
-export const CROWNSHARD = {
-  firstAt: 5.5,
-  repeatDelay: 4,
-  shockwaveWarning: 1.2,
-  shockwaveInterval: 0.65,
-  shockwaveDamage: 19,
-  crownfallWarning: 1.5,
-  crownfallRadius: 1.85,
-  crownfallDamage: 28,
-  recoverDuration: 0.78,
-} as const;
-
-const CROWNFALL_TARGETS: readonly (readonly MemberId[])[] = [
-  ["aelia", "nia", "orin"],
-  ["brann", "vale", "aelia"],
-  ["nia", "orin", "vale"],
-];
-
-export function createCrownshardState(): BossState {
-  const definition = BOSS_DEFINITIONS["crownshard-golem"];
-  return createBossStateFor(definition.id, definition.name, definition.maxHp, 2.4);
-}
-
-export function createCrownshardMotion(): BossMotionState {
-  return { ...createBaseMotion("crownshard-golem"), position: [0, -6.7], nextMechanicAt: CROWNSHARD.firstAt };
-}
-
-function beginMechanic(motion: BossMotionState, context: BossMechanicContext, events: BossMechanicResult["events"]) {
-  const mechanicCount = motion.mechanicCount + 1;
-  if (motion.mechanicCount % 2 === 0) {
-    const bands = [
-      { innerRadius: 0, radius: 2.35 },
-      { innerRadius: 2.35, radius: 4.7 },
-      { innerRadius: 4.7, radius: 7.05 },
-    ];
-    const firstActivation = context.time + CROWNSHARD.shockwaveWarning;
-    events.push({ at: context.time, message: "Tri-Burst expands in three rings. Move with each head's safe band.", tone: "danger", pulseKind: "boss" });
-    return {
-      ...motion,
-      mode: "golem_shockwave" as const,
-      phaseStartedAt: context.time,
-      phaseEndsAt: firstActivation + CROWNSHARD.shockwaveInterval * (bands.length - 1) + 0.32,
-      nextMechanicAt: Number.POSITIVE_INFINITY,
-      mechanicCount,
-      hazards: [
-        ...motion.hazards,
-        ...bands.map((band, index) => createCircleHazard({
-          id: `crownshard-shockwave-${mechanicCount}-${index}`,
-          kind: "royal_shockwave",
-          center: motion.position,
-          innerRadius: band.innerRadius,
-          radius: band.radius,
-          activatesAt: firstActivation + index * CROWNSHARD.shockwaveInterval,
-          duration: 0.3,
-          damage: CROWNSHARD.shockwaveDamage,
-        })),
-      ],
-    };
-  }
-
-  const activatesAt = context.time + CROWNSHARD.crownfallWarning;
-  const targetSet = CROWNFALL_TARGETS[Math.floor(motion.mechanicCount / 2) % CROWNFALL_TARGETS.length];
-  events.push({ at: context.time, message: "Ultimate Skyfall marks three allies. Break formation before impact.", tone: "danger", pulseKind: "skyfall", targetId: targetSet[0] });
-  return {
-    ...motion,
-    mode: "golem_crownfall" as const,
-    phaseStartedAt: context.time,
-    phaseEndsAt: activatesAt + 0.32,
-    nextMechanicAt: Number.POSITIVE_INFINITY,
-    mechanicCount,
-    hazards: [
-      ...motion.hazards,
-      ...targetSet.map((targetId, index) => createCircleHazard({
-        id: `crownshard-fall-${mechanicCount}-${index}`,
-        kind: "crownfall",
-        center: context.partyPositions[targetId],
-        radius: CROWNSHARD.crownfallRadius,
-        activatesAt,
-        duration: 0.3,
-        damage: CROWNSHARD.crownfallDamage,
-      })),
-    ],
-  };
-}
-
-export function advanceCrownshardMechanics(context: BossMechanicContext): BossMechanicResult {
-  const boss = { ...context.boss };
-  let motion = cloneMotion(context.motion);
-  const events: BossMechanicResult["events"] = [];
-  let party = context.party;
-
-  if (motion.mode === "holding") {
-    returnBossToArenaCenter(motion, context.delta, 1.55);
-    if (context.time >= motion.nextMechanicAt) motion = beginMechanic(motion, { ...context, party }, events);
-  } else if ((motion.mode === "golem_shockwave" || motion.mode === "golem_crownfall") && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "golem_recover", phaseEndsAt: context.time + CROWNSHARD.recoverDuration };
-  } else if (motion.mode === "golem_recover" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "holding", phaseEndsAt: 0, nextMechanicAt: context.time + CROWNSHARD.repeatDelay };
-  }
-
-  party = resolveCircleHazards(motion, party, context.partyPositions, context.time, context.damageMember, events);
-  applyMelee(boss, motion, party, context.partyPositions, context.time, 2.3, 15, context.damageMember);
-  return { boss, motion, party, events };
-}
-
-export function upcomingCrownshardMechanic(_boss: BossState, motion: BossMotionState, time: number): UpcomingMechanic {
-  if (motion.mode === "golem_shockwave") return { name: "Tri-Burst — follow rings", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: CROWNSHARD.shockwaveWarning + CROWNSHARD.shockwaveInterval * 2, urgent: true };
-  if (motion.mode === "golem_crownfall") return { name: "Ultimate Skyfall — spread", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: CROWNSHARD.crownfallWarning, urgent: true };
-  if (motion.mode === "golem_recover") return { name: "Ultimate Dragon exposed", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: CROWNSHARD.recoverDuration, urgent: false };
-  const remaining = Math.max(0, motion.nextMechanicAt - time);
-  return { name: motion.mechanicCount % 2 === 0 ? "Tri-Burst" : "Ultimate Skyfall", remaining, cycle: CROWNSHARD.repeatDelay + CROWNSHARD.shockwaveWarning, urgent: remaining < 2.5 };
-}

src/game/bosses/emberMantis.test.ts

@@ -1,97 +0,0 @@
-import { describe, expect, it } from "vitest";
-import { freshParty } from "../data";
-import { pointToSegmentDistance } from "../geometry";
-import { evadeSlashLanesBehavior } from "../partyBehaviors";
-import type { BossMechanicContext } from "./types";
-import {
-  advanceEmberMantisMechanics,
-  createEmberMantisMotion,
-  createEmberMantisState,
-  EMBER_MANTIS_SLASH,
-} from "./emberMantis";
-
-const POSITIONS: BossMechanicContext["partyPositions"] = {
-  aelia: [0, 4.5],
-  brann: [0, 0],
-  nia: [-3, 2],
-  orin: [3, 2],
-  vale: [0, -2],
-};
-
-function context(
-  boss: ReturnType<typeof createEmberMantisState>,
-  motion: ReturnType<typeof createEmberMantisMotion>,
-  party = freshParty(),
-  time = 0,
-  delta = 0.1,
-): BossMechanicContext {
-  return {
-    boss,
-    motion,
-    party,
-    partyPositions: structuredClone(POSITIONS),
-    time,
-    delta,
-    damageMember: (member, amount) => ({ ...member, hp: Math.max(0, member.hp - amount) }),
-  };
-}
-
-describe("Warcaller mechanics", () => {
-  it("sidesteps, telegraphs Elemental Beam, then damages targets left in the lane", () => {
-    const boss = createEmberMantisState();
-    const sidestep = advanceEmberMantisMechanics(context(boss, createEmberMantisMotion(), freshParty(), 5, 0.1));
-    expect(sidestep.motion.mode).toBe("mantis_sidestep");
-    expect(sidestep.motion.chargeTargetId).toBe("nia");
-
-    const telegraph = advanceEmberMantisMechanics(context(sidestep.boss, sidestep.motion, sidestep.party, 5.6, 0.6));
-    expect(telegraph.motion.mode).toBe("mantis_line_telegraph");
-    expect(telegraph.motion.slashLanes).toHaveLength(1);
-
-    const niaBefore = telegraph.party.find((member) => member.id === "nia")!.hp;
-    const impact = advanceEmberMantisMechanics(context(telegraph.boss, telegraph.motion, telegraph.party, 6.51, 0.91));
-    expect(impact.motion.mode).toBe("mantis_recover");
-    expect(impact.motion.mechanicHitIds).toContain("nia");
-    expect(impact.party.find((member) => member.id === "nia")!.hp).toBe(niaBefore - EMBER_MANTIS_SLASH.lineDamage);
-    expect(impact.events.some((event) => event.message.includes("Elemental Beam"))).toBe(true);
-  });
-
-  it("alternates into two crossed slash lanes", () => {
-    const motion = {
-      ...createEmberMantisMotion(),
-      mode: "mantis_sidestep" as const,
-      mechanicCount: 1,
-      chargeTargetId: "orin" as const,
-      chargeEnd: [0, -6.6] as [number, number],
-      phaseEndsAt: 0,
-    };
-    const result = advanceEmberMantisMechanics(context(createEmberMantisState(), motion, freshParty(), 1, 0.1));
-    expect(result.motion.mode).toBe("mantis_cross_telegraph");
-    expect(result.motion.slashLanes).toHaveLength(2);
-    expect(result.motion.slashLanes[0].id).toContain("cross");
-  });
-
-  it("gives mobile allies a target outside crossed lanes", () => {
-    const motion = {
-      ...createEmberMantisMotion(),
-      mode: "mantis_sidestep" as const,
-      mechanicCount: 1,
-      chargeTargetId: "orin" as const,
-      chargeEnd: [0, -6.6] as [number, number],
-      phaseEndsAt: 0,
-    };
-    const telegraph = advanceEmberMantisMechanics(context(createEmberMantisState(), motion, freshParty(), 1, 0.1)).motion;
-    const decision = evadeSlashLanesBehavior.decide({
-      memberId: "orin",
-      current: POSITIONS.orin,
-      formationTarget: POSITIONS.orin,
-      bossMotion: telegraph,
-      partyPositions: POSITIONS,
-      time: 1,
-    });
-    expect(decision).not.toBeNull();
-    const minimumLaneDistance = Math.min(...telegraph.slashLanes.map((lane) =>
-      pointToSegmentDistance(decision!.target, lane.start, lane.end),
-    ));
-    expect(minimumLaneDistance).toBeGreaterThan(EMBER_MANTIS_SLASH.aiClearance);
-  });
-});

src/game/bosses/emberMantis.ts

@@ -1,241 +0,0 @@
-import { BOSS_DEFINITIONS } from "../bossCatalog";
-import { angleTo, moveToward, pointToSegmentDistance } from "../geometry";
-import type { BossId, BossMotionState, BossState, MemberId, SlashLane, WorldPosition } from "../types";
-import { applyMelee, chooseLivingTarget, cloneMotion, createBaseMotion, memberName, returnBossToArenaCenter } from "./shared";
-import type { BossMechanicContext, BossMechanicResult, UpcomingMechanic } from "./types";
-
-export const EMBER_MANTIS_SLASH = {
-  firstAt: 5,
-  repeatDelay: 3.4,
-  sidestepDuration: 0.55,
-  sidestepDistance: 3.8,
-  sidestepSpeed: 7.2,
-  telegraphDuration: 0.9,
-  recoverDuration: 0.7,
-  laneLength: 18,
-  lineWidth: 1.65,
-  crossWidth: 1.45,
-  lineDamage: 32,
-  crossDamage: 25,
-  crossAngle: Math.PI * 0.18,
-  staggerDuration: 0.35,
-  aiClearance: 1.35,
-  aiEvadeSpeed: 4.8,
-} as const;
-
-const TARGET_ORDER: readonly MemberId[] = ["nia", "orin", "aelia", "vale", "brann"];
-const MIN_BOSS_X = -5.8;
-const MAX_BOSS_X = 5.8;
-
-export function createEmberMantisState(bossId: BossId = "warcaller-orc"): BossState {
-  const definition = BOSS_DEFINITIONS[bossId];
-  return {
-    id: definition.id,
-    name: definition.name,
-    maxHp: definition.maxHp,
-    hp: definition.maxHp,
-    nextMeleeAt: 2.2,
-    nextNovaAt: Number.POSITIVE_INFINITY,
-    nextBrandAt: Number.POSITIVE_INFINITY,
-    brandCount: 0,
-  };
-}
-
-export function createEmberMantisMotion(bossId: BossId = "warcaller-orc"): BossMotionState {
-  return {
-    ...createBaseMotion(bossId),
-    position: [0, -6.6],
-    nextMechanicAt: EMBER_MANTIS_SLASH.firstAt,
-  };
-}
-
-function clampBossX(value: number) {
-  return Math.max(MIN_BOSS_X, Math.min(MAX_BOSS_X, value));
-}
-
-function createLane(
-  id: string,
-  center: WorldPosition,
-  angle: number,
-  width: number,
-  damage: number,
-): SlashLane {
-  const halfLength = EMBER_MANTIS_SLASH.laneLength * 0.5;
-  const dx = Math.sin(angle) * halfLength;
-  const dz = Math.cos(angle) * halfLength;
-  return {
-    id,
-    start: [center[0] - dx, center[1] - dz],
-    end: [center[0] + dx, center[1] + dz],
-    width,
-    damage,
-  };
-}
-
-function beginSidestep(
-  motion: BossMotionState,
-  party: BossMechanicContext["party"],
-  partyPositions: BossMechanicContext["partyPositions"],
-  time: number,
-) {
-  const targetId = chooseLivingTarget(party, TARGET_ORDER, motion.mechanicCount);
-  const direction = motion.mechanicCount % 2 === 0 ? 1 : -1;
-  let targetX = clampBossX(motion.position[0] + direction * EMBER_MANTIS_SLASH.sidestepDistance);
-  if (Math.abs(targetX - motion.position[0]) < 1) {
-    targetX = clampBossX(motion.position[0] - direction * EMBER_MANTIS_SLASH.sidestepDistance);
-  }
-  return {
-    ...motion,
-    mode: "mantis_sidestep" as const,
-    chargeTargetId: targetId,
-    chargeEnd: [targetX, motion.position[1]] as WorldPosition,
-    phaseStartedAt: time,
-    phaseEndsAt: time + EMBER_MANTIS_SLASH.sidestepDuration,
-    nextMechanicAt: Number.POSITIVE_INFINITY,
-    slashLanes: [],
-    mechanicHitIds: [],
-    pounceCenter: [partyPositions[targetId][0], partyPositions[targetId][1]] as WorldPosition,
-  };
-}
-
-function beginSlashTelegraph(
-  motion: BossMotionState,
-  partyPositions: BossMechanicContext["partyPositions"],
-  time: number,
-) {
-  const target = partyPositions[motion.chargeTargetId];
-  const aimedAngle = angleTo(motion.position, target);
-  const isCrossSlash = motion.mechanicCount % 2 === 1;
-  const slashNumber = motion.mechanicCount + 1;
-  const lanes = isCrossSlash
-    ? [
-        createLane(`cross-${slashNumber}-left`, target, aimedAngle - EMBER_MANTIS_SLASH.crossAngle, EMBER_MANTIS_SLASH.crossWidth, EMBER_MANTIS_SLASH.crossDamage),
-        createLane(`cross-${slashNumber}-right`, target, aimedAngle + EMBER_MANTIS_SLASH.crossAngle, EMBER_MANTIS_SLASH.crossWidth, EMBER_MANTIS_SLASH.crossDamage),
-      ]
-    : [createLane(`line-${slashNumber}`, target, aimedAngle, EMBER_MANTIS_SLASH.lineWidth, EMBER_MANTIS_SLASH.lineDamage)];
-
-  return {
-    ...motion,
-    mode: isCrossSlash ? "mantis_cross_telegraph" as const : "mantis_line_telegraph" as const,
-    phaseStartedAt: time,
-    phaseEndsAt: time + EMBER_MANTIS_SLASH.telegraphDuration,
-    mechanicCount: slashNumber,
-    slashLanes: lanes,
-    mechanicHitIds: [],
-  };
-}
-
-function resolveSlash(
-  motion: BossMotionState,
-  context: BossMechanicContext,
-  events: BossMechanicResult["events"],
-) {
-  const isCrossSlash = motion.mode === "mantis_cross_telegraph";
-  const hitIds: MemberId[] = [];
-  const party = context.party.map((member) => {
-    if (member.hp <= 0) return member;
-    const lane = motion.slashLanes.find((candidate) =>
-      pointToSegmentDistance(context.partyPositions[member.id], candidate.start, candidate.end) <= candidate.width * 0.5,
-    );
-    if (!lane) return member;
-    hitIds.push(member.id);
-    events.push({
-      at: context.time,
-      message: `${member.name} is caught by ${isCrossSlash ? "Guardian Cross" : "Elemental Beam"}.`,
-      tone: "danger",
-      pulseKind: "slash",
-      targetId: member.id,
-    });
-    return {
-      ...context.damageMember(member, lane.damage, context.partyPositions[member.id], context.time),
-      knockedUntil: Math.max(member.knockedUntil, context.time + EMBER_MANTIS_SLASH.staggerDuration),
-    };
-  });
-  return { party, hitIds };
-}
-
-export function advanceEmberMantisMechanics(context: BossMechanicContext): BossMechanicResult {
-  const boss = { ...context.boss };
-  let motion = cloneMotion(context.motion);
-  let party = context.party;
-  const events: BossMechanicResult["events"] = [];
-
-  if (motion.mode === "holding") {
-    returnBossToArenaCenter(motion, context.delta, 2.5);
-    if (context.time >= motion.nextMechanicAt) {
-      motion = beginSidestep(motion, party, context.partyPositions, context.time);
-      events.push({
-        at: context.time,
-        message: `${boss.name} shifts toward ${memberName(party, motion.chargeTargetId)}. Track its attack.`,
-        tone: "danger",
-        pulseKind: "slash",
-        targetId: motion.chargeTargetId,
-      });
-    }
-  } else if (motion.mode === "mantis_sidestep") {
-    motion.position = moveToward(motion.position, motion.chargeEnd, EMBER_MANTIS_SLASH.sidestepSpeed * context.delta);
-    if (context.time >= motion.phaseEndsAt) {
-      motion = beginSlashTelegraph(motion, context.partyPositions, context.time);
-      const cross = motion.mode === "mantis_cross_telegraph";
-      events.push({
-        at: context.time,
-        message: cross ? "Guardian Cross! Find a safe quadrant." : "Elemental Beam! Clear the glowing lane.",
-        tone: "danger",
-        pulseKind: "slash",
-        targetId: motion.chargeTargetId,
-      });
-    }
-  } else if (motion.mode === "mantis_line_telegraph" || motion.mode === "mantis_cross_telegraph") {
-    if (context.time >= motion.phaseEndsAt) {
-      const resolved = resolveSlash(motion, context, events);
-      party = resolved.party;
-      motion = {
-        ...motion,
-        mode: "mantis_recover",
-        phaseStartedAt: context.time,
-        phaseEndsAt: context.time + EMBER_MANTIS_SLASH.recoverDuration,
-        mechanicHitIds: resolved.hitIds,
-      };
-    }
-  } else if (motion.mode === "mantis_recover" && context.time >= motion.phaseEndsAt) {
-    motion = {
-      ...motion,
-      mode: "holding",
-      phaseStartedAt: context.time,
-      phaseEndsAt: 0,
-      nextMechanicAt: context.time + EMBER_MANTIS_SLASH.repeatDelay,
-      slashLanes: [],
-      mechanicHitIds: [],
-    };
-  }
-
-  applyMelee(boss, motion, party, context.partyPositions, context.time, 1.9, 14, context.damageMember);
-  return { boss, motion, party, events };
-}
-
-export function upcomingEmberMantisMechanic(
-  boss: BossState,
-  motion: BossMotionState,
-  time: number,
-): UpcomingMechanic {
-  if (motion.mode === "mantis_sidestep") {
-    return { name: "Guardian repositioning", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: EMBER_MANTIS_SLASH.sidestepDuration, urgent: true };
-  }
-  if (motion.mode === "mantis_line_telegraph") {
-    return { name: "Elemental Beam — clear lane", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: EMBER_MANTIS_SLASH.telegraphDuration, urgent: true };
-  }
-  if (motion.mode === "mantis_cross_telegraph") {
-    return { name: "Guardian Cross — safe quadrant", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: EMBER_MANTIS_SLASH.telegraphDuration, urgent: true };
-  }
-  if (motion.mode === "mantis_recover") {
-    return { name: `${boss.name} exposed`, remaining: Math.max(0, motion.phaseEndsAt - time), cycle: EMBER_MANTIS_SLASH.recoverDuration, urgent: false };
-  }
-  const nextIsCross = motion.mechanicCount % 2 === 1;
-  const remaining = Math.max(0, motion.nextMechanicAt - time);
-  return {
-    name: nextIsCross ? "Guardian Cross" : "Elemental Beam",
-    remaining,
-    cycle: EMBER_MANTIS_SLASH.repeatDelay + EMBER_MANTIS_SLASH.telegraphDuration,
-    urgent: remaining < 2.5,
-  };
-}

src/game/bosses/iwt2BossTrio.test.ts

@@ -1,85 +0,0 @@
-import { describe, expect, it } from "vitest";
-import { freshParty } from "../data";
-import type { BossMotionState, BossState, WorldPosition } from "../types";
-import { advanceCinderbackMechanics, CINDERBACK, createCinderbackMotion, createCinderbackState } from "./ricochet";
-import { advanceObsidianRamMechanics, createObsidianRamMotion, createObsidianRamState, OBSIDIAN_RAM } from "./obsidianRamGolem";
-import { advanceSandglassMechanics, createSandglassMotion, createSandglassState, SANDGLASS } from "./sandglassScorpion";
-import type { BossMechanicContext } from "./types";
-
-const POSITIONS: BossMechanicContext["partyPositions"] = {
-  aelia: [0, 4.5],
-  brann: [0, 0],
-  nia: [-3, 2],
-  orin: [3, 2],
-  vale: [0, -2],
-};
-
-function context(
-  boss: BossState,
-  motion: BossMotionState,
-  time: number,
-  delta = 0.1,
-  positions = POSITIONS,
-  party = freshParty(),
-): BossMechanicContext {
-  return {
-    boss,
-    motion,
-    party,
-    partyPositions: structuredClone(positions),
-    time,
-    delta,
-    damageMember: (member, amount) => ({ ...member, hp: Math.max(0, member.hp - amount) }),
-  };
-}
-
-describe("IWT2 boss trio mechanics", () => {
-  it("telegraphs and resolves Bristlequake Tusk Charge", () => {
-    const start = advanceObsidianRamMechanics(context(createObsidianRamState(), createObsidianRamMotion(), OBSIDIAN_RAM.firstAt));
-    expect(start.motion.mode).toBe("ram_charge_telegraph");
-    expect(start.motion.slashLanes).toHaveLength(1);
-
-    const active = advanceObsidianRamMechanics(context(start.boss, start.motion, start.motion.phaseEndsAt, 0.1, POSITIONS, start.party));
-    expect(active.motion.mode).toBe("ram_charging");
-    const niaBefore = active.party.find((member) => member.id === "nia")!.hp;
-    const impact = advanceObsidianRamMechanics(context(active.boss, active.motion, active.motion.phaseStartedAt + 1, 1, POSITIONS, active.party));
-    expect(impact.party.find((member) => member.id === "nia")!.hp).toBe(niaBefore - OBSIDIAN_RAM.chargeDamage);
-  });
-
-  it("builds three Armor Shatter fault lanes", () => {
-    const motion = { ...createObsidianRamMotion(), mechanicCount: 2, nextMechanicAt: 0 };
-    const result = advanceObsidianRamMechanics(context(createObsidianRamState(), motion, 0));
-    expect(result.motion.mode).toBe("ram_shatter");
-    expect(result.motion.slashLanes).toHaveLength(3);
-  });
-
-  it("executes both Cinderback rebounds and leaves lava at each impact", () => {
-    const start = advanceCinderbackMechanics(context(createCinderbackState(), createCinderbackMotion(), CINDERBACK.firstAt));
-    const firstRush = advanceCinderbackMechanics(context(start.boss, start.motion, start.motion.phaseEndsAt, 0.1, POSITIONS, start.party));
-    const firstImpact = advanceCinderbackMechanics(context(firstRush.boss, firstRush.motion, firstRush.motion.phaseStartedAt + 2, 2, POSITIONS, firstRush.party));
-    expect(firstImpact.motion.mode).toBe("cinderback_ricochet");
-    expect(firstImpact.motion.chargeCount).toBe(1);
-    expect(firstImpact.motion.hazards.filter((hazard) => hazard.kind === "lava_pool")).toHaveLength(1);
-
-    const secondImpact = advanceCinderbackMechanics(context(firstImpact.boss, firstImpact.motion, firstImpact.motion.phaseEndsAt, 2, POSITIONS, firstImpact.party));
-    expect(secondImpact.motion.mode).toBe("cinderback_recover");
-    expect(secondImpact.motion.hazards.filter((hazard) => hazard.kind === "lava_pool")).toHaveLength(2);
-  });
-
-  it("turns Sandglass stinger warnings into an active hourglass zone", () => {
-    const motion = { ...createSandglassMotion(), mechanicCount: 1, nextMechanicAt: 0 };
-    const start = advanceSandglassMechanics(context(createSandglassState(), motion, 0));
-    expect(start.motion.mode).toBe("sandglass_eruption");
-    expect(start.motion.hazards.filter((hazard) => hazard.kind === "stinger_eruption")).toHaveLength(3);
-
-    const positions = structuredClone(POSITIONS);
-    positions.aelia = [...start.motion.hazards[0].center] as WorldPosition;
-    const aeliaBefore = start.party[0].hp;
-    const eruption = advanceSandglassMechanics(context(start.boss, start.motion, SANDGLASS.eruptionWarning + 0.05, 0.1, positions, start.party));
-    expect(eruption.party[0].hp).toBe(aeliaBefore - SANDGLASS.eruptionDamage);
-
-    const hourglass = advanceSandglassMechanics(context(eruption.boss, eruption.motion, eruption.motion.phaseEndsAt + 0.01, 0.1, POSITIONS, eruption.party));
-    expect(hourglass.motion.mode).toBe("sandglass_hourglass");
-    expect(hourglass.motion.hazards.some((hazard) => hazard.kind === "hourglass")).toBe(true);
-  });
-});

src/game/bosses/mechanicPool.test.ts

@@ -1,8 +1,8 @@
 import { describe, expect, it } from "vitest";
 import { freshParty } from "../data";
 import { createBaseMotion } from "./shared";
-import { advancePooledBossMechanics, POOLED_MECHANIC_TIMING, SOUL_SIPHON } from "./mechanicPool";
-import type { BossMechanicContext, BossMechanicResult } from "./types";
+import { advanceMechanicLoadout, BOSS_MECHANIC_POOL, bossAnimationCue, SOUL_SIPHON } from "./mechanicPool";
+import type { BossMechanicContext } from "./types";
 import type { BossState, PoolTelegraph, WorldPosition } from "../types";
 
 const POSITIONS: BossMechanicContext["partyPositions"] = {
@@ -20,9 +20,6 @@ function state(): BossState {
     maxHp: 500,
     hp: 500,
     nextMeleeAt: Number.POSITIVE_INFINITY,
-    nextNovaAt: Number.POSITIVE_INFINITY,
-    nextBrandAt: Number.POSITIVE_INFINITY,
-    brandCount: 0,
   };
 }
 
@@ -38,10 +35,6 @@ function context(time: number, positions = POSITIONS): BossMechanicContext {
   };
 }
 
-function result(contextValue: BossMechanicContext): BossMechanicResult {
-  return { boss: contextValue.boss, motion: contextValue.motion, party: contextValue.party, events: [] };
-}
-
 function memoryTelegraph(): PoolTelegraph {
   return {
     id: "test-memory",
@@ -79,10 +72,10 @@ function advanceMemory(
   source.party = party;
   source.motion = {
     ...source.motion,
-    nextPoolMechanicAt: Number.POSITIVE_INFINITY,
+    activeMechanicId: "memory-sequence",
     poolTelegraphs: [telegraph],
   };
-  return advancePooledBossMechanics(source, result(source));
+  return advanceMechanicLoadout(source, ["memory-sequence", "bull-charge"]);
 }
 
 function soulSiphonTelegraph(): PoolTelegraph {
@@ -121,21 +114,31 @@ function advanceSoulSiphon(
   source.party = party;
   source.motion = {
     ...source.motion,
-    nextPoolMechanicAt: Number.POSITIVE_INFINITY,
+    activeMechanicId: "soul-siphon",
     poolTelegraphs: [telegraph],
   };
-  return advancePooledBossMechanics(source, result(source));
+  return advanceMechanicLoadout(source, ["soul-siphon", "bull-charge"]);
 }
 
 describe("shared boss mechanic pool", () => {
-  it("schedules a telegraphed pool mechanic and keeps its warning state independent of boss mode", () => {
-    const source = context(POOLED_MECHANIC_TIMING.firstAt);
-    const started = advancePooledBossMechanics(source, result(source));
+  it.each(BOSS_MECHANIC_POOL.filter(({ id }) => id !== "basic-melee"))("starts $name directly from its canonical ID", ({ id }) => {
+    const source = context(0);
+    source.motion.nextMechanicAt = 0;
+    const started = advanceMechanicLoadout(source, [id, id]);
 
-    expect(started.motion.mode).toBe("holding");
+    expect(started.motion.activeMechanicId).toBe(id);
+    expect(["idle", "move", "attack", "special"]).toContain(bossAnimationCue(started.motion));
+  });
+
+  it("schedules the exact mechanic ID selected by a boss loadout", () => {
+    const source = context(0);
+    source.motion.nextMechanicAt = 0;
+    const started = advanceMechanicLoadout(source, ["meteor-spread", "bull-charge"]);
+
+    expect(started.motion.activeMechanicId).toBe("meteor-spread");
     expect(started.motion.poolTelegraphs).not.toHaveLength(0);
     expect(started.events[0].message).toContain(":");
-    expect(started.motion.nextPoolMechanicAt).toBe(Number.POSITIVE_INFINITY);
+    expect(bossAnimationCue(started.motion)).toBe("attack");
   });
 
   it("splits soak damage across allies inside its indicator", () => {
@@ -156,14 +159,14 @@ describe("shared boss mechanic pool", () => {
       resolved: false,
       hitIds: [],
     };
-    const motion = { ...source.motion, nextPoolMechanicAt: Number.POSITIVE_INFINITY, poolTelegraphs: [soak] };
+    const motion = { ...source.motion, activeMechanicId: "aetheric-soak" as const, poolTelegraphs: [soak] };
     const positions = structuredClone(POSITIONS);
     positions.aelia = [0.2, 0];
     positions.brann = [0, 0];
     positions.nia = [-0.2, 0];
     positions.vale = [0, -4];
     const atImpact = { ...source, motion, partyPositions: positions, time: activatesAt };
-    const resolved = advancePooledBossMechanics(atImpact, result(atImpact));
+    const resolved = advanceMechanicLoadout(atImpact, ["aetheric-soak", "bull-charge"]);
 
     expect(resolved.party.find((member) => member.id === "aelia")!.hp).toBe(source.party[0].hp - 30);
     expect(resolved.party.find((member) => member.id === "brann")!.hp).toBe(source.party[1].hp - 30);
@@ -192,11 +195,11 @@ describe("shared boss mechanic pool", () => {
     positions.brann = [3, 0];
     const atImpact = {
       ...source,
-      motion: { ...source.motion, nextPoolMechanicAt: Number.POSITIVE_INFINITY, poolTelegraphs: [donut] },
+      motion: { ...source.motion, activeMechanicId: "hollow-collapse" as const, poolTelegraphs: [donut] },
       partyPositions: positions,
       time: activatesAt,
     };
-    const resolved = advancePooledBossMechanics(atImpact, result(atImpact));
+    const resolved = advanceMechanicLoadout(atImpact, ["hollow-collapse", "bull-charge"]);
 
     expect(resolved.party.find((member) => member.id === "aelia")!.hp).toBe(source.party[0].hp);
     expect(resolved.party.find((member) => member.id === "brann")!.hp).toBe(source.party[1].hp - 25);

src/game/bosses/mechanicPool.ts

@@ -1,9 +1,34 @@
 import { ARENA_CENTER, ARENA_RADIUS, clampToArena } from "../arena";
 import { angleTo, distance, moveToward, pointToSegmentDistance } from "../geometry";
-import type { BossMotionState, MemberId, MemorySymbolId, PartyMember, PoolTelegraph, WorldPosition } from "../types";
+import type { BossAnimationCue, BossMechanicId, BossMotionState, CircleHazard, MemberId, MemorySymbolId, PartyMember, PoolTelegraph, SlashLane, WorldPosition } from "../types";
+import { applyMelee, chooseLivingTarget, cloneMotion, createCircleHazard, memberName, resolveCircleHazards, returnBossToArenaCenter } from "./shared";
 import type { BossMechanicContext, BossMechanicResult, UpcomingMechanic } from "./types";
 
 export const BOSS_MECHANIC_POOL = [
+  { id: "basic-melee", name: "Basic Melee", instruction: "Maintain tank pressure." },
+  { id: "bull-charge", name: "Bull Charge", instruction: "Clear the marked charge lane." },
+  { id: "crushing-pounce", name: "Crushing Pounce", instruction: "Stack to split the impact." },
+  { id: "cinder-nova", name: "Cinder Nova", instruction: "Heal the party through raidwide damage." },
+  { id: "ember-brand", name: "Ember Brand", instruction: "Purify the marked ally." },
+  { id: "binding-web", name: "Binding Web", instruction: "Separate the linked allies." },
+  { id: "venom-purge", name: "Venom Purge", instruction: "Move away before cleansing Widow Venom." },
+  { id: "storm-breath", name: "Storm Breath", instruction: "Rotate behind the sweeping cone." },
+  { id: "stormfall", name: "Stormfall", instruction: "Spread before the marked impacts." },
+  { id: "elemental-beam", name: "Elemental Beam", instruction: "Clear the glowing lane." },
+  { id: "guardian-cross", name: "Guardian Cross", instruction: "Find a safe quadrant." },
+  { id: "destruction-rush", name: "Destruction Rush", instruction: "Clear the marked rush lane." },
+  { id: "ruin-quake", name: "Ruin Quake", instruction: "Leave the destruction circle." },
+  { id: "destruction-pulse", name: "Destruction Pulse", instruction: "Step between the radial beams." },
+  { id: "ricochet-rush", name: "Ricochet Rush", instruction: "Dodge both rebound lanes." },
+  { id: "meteor-slam", name: "Meteor Slam", instruction: "Leave the impact and spreading flame." },
+  { id: "burrow-rush", name: "Burrow Rush", instruction: "Cross the marked trail." },
+  { id: "hourglass-eruption", name: "Hourglass Eruption", instruction: "Leave the eruptions and moving zone." },
+  { id: "sidewinder-rush", name: "Sidewinder Rush", instruction: "Clear the surf lane." },
+  { id: "crushing-tide", name: "Crushing Tide", instruction: "Spread before the claws close." },
+  { id: "vine-scissors", name: "Vine Scissors", instruction: "Dodge the first and rotated crosses." },
+  { id: "haunting-rifts", name: "Haunting Rifts", instruction: "Carry persistent rifts away from formation." },
+  { id: "tri-burst", name: "Tri-Burst", instruction: "Move through the three expanding rings." },
+  { id: "ultimate-skyfall", name: "Ultimate Skyfall", instruction: "Spread before the marked impacts." },
   {
     id: "meteor-spread",
     name: "Meteor Spread",
@@ -36,18 +61,62 @@ export const BOSS_MECHANIC_POOL = [
   },
 ] as const;
 
-export type PoolMechanicId = (typeof BOSS_MECHANIC_POOL)[number]["id"];
+const MECHANIC_COPY_BY_ID = Object.fromEntries(
+  BOSS_MECHANIC_POOL.map((mechanic) => [mechanic.id, mechanic]),
+) as Record<BossMechanicId, (typeof BOSS_MECHANIC_POOL)[number]>;
+
+export function bossMechanicName(id: BossMechanicId) {
+  return MECHANIC_COPY_BY_ID[id].name;
+}
 
 export const POOLED_MECHANIC_TIMING = {
-  firstAt: 15,
-  repeatDelay: 26,
   activeDuration: 0.42,
   warningDuration: 1.4,
 } as const;
 
+export const BULL_CHARGE = {
+  warning: 1.8,
+  speed: 10.5,
+  distance: 13.5,
+  hitRadius: 1.35,
+  damage: 18,
+  knockdown: 0.75,
+  cooldown: 4,
+  aiClearance: 1.9,
+  aiEvadeSpeed: 3.4,
+} as const;
+
+export const BULL_POUNCE = {
+  stackDuration: 5,
+  stackRadius: 2.2,
+  sharedDamage: 200,
+  leapDuration: 0.55,
+  cooldown: 4,
+} as const;
+
+export const SKY_SWEEPER_BREATH = {
+  telegraphDuration: 2,
+  sweepDuration: 3.2,
+  range: 10.5,
+  halfAngle: Math.PI / 7,
+  sweepArc: Math.PI * 0.95,
+  tickDamage: 9,
+  tickInterval: 0.45,
+  cooldown: 4,
+} as const;
+
+export const VENOM_PURGE = {
+  duration: 10,
+  tickDamage: 5,
+  castDuration: 2.5,
+  poolRadius: 2,
+  poolDuration: 7,
+  poolDamage: 14,
+} as const;
+
 export const MEMORY_SEQUENCE = {
   sequenceLength: 4,
-  flashDuration: 0.68,
+  flashDuration: 0.9,
   inputDuration: 7,
   tileSize: 2.15,
   raidwideDamage: 15,
@@ -84,13 +153,6 @@ const MEMORY_SEQUENCES: readonly (readonly MemorySymbolId[])[] = [
 ];
 
 const TARGET_ORDER: readonly MemberId[] = ["nia", "orin", "vale", "brann", "aelia"];
-
-function bossPoolOffset(bossId: string) {
-  let value = 0;
-  for (let index = 0; index < bossId.length; index += 1) value = (value + bossId.charCodeAt(index)) % BOSS_MECHANIC_POOL.length;
-  return value;
-}
-
 function liveTarget(party: PartyMember[], targetId: MemberId) {
   return party.some((member) => member.id === targetId && member.hp > 0)
     ? targetId
@@ -220,9 +282,10 @@ function beginPoolMechanic(
   party: PartyMember[],
   positions: BossMechanicContext["partyPositions"],
   time: number,
+  requestedId: BossMechanicId,
 ) {
   const count = motion.poolMechanicCount + 1;
-  const entry = BOSS_MECHANIC_POOL[(bossPoolOffset(motion.bossId) + motion.poolMechanicCount) % BOSS_MECHANIC_POOL.length];
+  const entry = MECHANIC_COPY_BY_ID[requestedId];
   const activatesAt = time + POOLED_MECHANIC_TIMING.warningDuration;
   let telegraphs: PoolTelegraph[];
   let targetId: MemberId | undefined;
@@ -281,7 +344,6 @@ function beginPoolMechanic(
     motion: {
       ...motion,
       poolMechanicCount: count,
-      nextPoolMechanicAt: Number.POSITIVE_INFINITY,
       poolTelegraphs: telegraphs,
     },
     event: {
@@ -498,61 +560,6 @@ function resolveTelegraph(
   return next;
 }
 
-/** Composes the shared mechanic pool after a boss's signature mechanic update. */
-export function advancePooledBossMechanics(
-  context: BossMechanicContext,
-  result: BossMechanicResult,
-): BossMechanicResult {
-  if (context.allowPooledMechanics === false) return result;
-  const source = result.motion;
-  if (!source.poolTelegraphs.length && context.time < source.nextPoolMechanicAt) return result;
-
-  let motion: BossMotionState = {
-    ...source,
-    poolTelegraphs: source.poolTelegraphs.map((telegraph) => ({
-      ...telegraph,
-      center: [telegraph.center[0], telegraph.center[1]],
-      start: telegraph.start && [telegraph.start[0], telegraph.start[1]],
-      end: telegraph.end && [telegraph.end[0], telegraph.end[1]],
-      tiles: telegraph.tiles?.map((tile) => ({ ...tile, center: [tile.center[0], tile.center[1]] })),
-      soulSiphon: telegraph.soulSiphon && {
-        ...telegraph.soulSiphon,
-        ghostPosition: [telegraph.soulSiphon.ghostPosition[0], telegraph.soulSiphon.ghostPosition[1]],
-        wardPosition: [telegraph.soulSiphon.wardPosition[0], telegraph.soulSiphon.wardPosition[1]],
-      },
-      hitIds: [...telegraph.hitIds],
-    })),
-  };
-  let party = result.party;
-  const events = [...result.events];
-
-  for (const telegraph of motion.poolTelegraphs) {
-    if (telegraph.kind === "memory") {
-      if (!telegraph.resolved) party = resolveMemorySequence(telegraph, party, context.partyPositions, context, events);
-      continue;
-    }
-    if (telegraph.kind === "soul-siphon") {
-      if (!telegraph.resolved) party = resolveSoulSiphon(telegraph, party, context.partyPositions, context, events);
-      continue;
-    }
-    if (telegraph.resolved || context.time < telegraph.activatesAt) continue;
-    party = resolveTelegraph(telegraph, party, context.partyPositions, context, events);
-    telegraph.resolved = true;
-  }
-  motion.poolTelegraphs = motion.poolTelegraphs.filter((telegraph) => telegraph.expiresAt > context.time);
-
-  if (!motion.poolTelegraphs.length && context.time >= motion.nextPoolMechanicAt) {
-    const started = beginPoolMechanic(motion, party, context.partyPositions, context.time);
-    motion = started.motion;
-    events.push(started.event);
-  }
-  if (!motion.poolTelegraphs.length && !Number.isFinite(motion.nextPoolMechanicAt)) {
-    motion.nextPoolMechanicAt = context.time + POOLED_MECHANIC_TIMING.repeatDelay;
-  }
-
-  return { ...result, motion, party, events };
-}
-
 export function upcomingPooledMechanic(motion: BossMotionState, time: number): UpcomingMechanic | null {
   const telegraphs = motion.poolTelegraphs.filter((telegraph) => !telegraph.resolved && telegraph.expiresAt > time);
   if (!telegraphs.length) return null;
@@ -582,3 +589,702 @@ export function upcomingPooledMechanic(motion: BossMotionState, time: number): U
     urgent: true,
   };
 }
+
+interface MechanicRuntime {
+  readonly context: BossMechanicContext;
+  boss: BossMechanicResult["boss"];
+  motion: BossMotionState;
+  party: PartyMember[];
+  events: BossMechanicResult["events"];
+}
+
+export interface BossMechanicDefinition {
+  readonly id: BossMechanicId;
+  readonly name: string;
+  readonly instruction: string;
+  readonly cooldown: number;
+  readonly passive?: boolean;
+  readonly start: (runtime: MechanicRuntime) => void;
+  readonly advance: (runtime: MechanicRuntime) => void;
+  upcoming?: (motion: BossMotionState, time: number) => UpcomingMechanic;
+  readonly animationCue: (motion: BossMotionState) => BossAnimationCue;
+}
+
+function finishMechanic(runtime: MechanicRuntime, cooldown: number) {
+  runtime.motion.activeMechanicId = null;
+  runtime.motion.mode = "holding";
+  runtime.motion.phaseEndsAt = 0;
+  runtime.motion.nextMechanicAt = runtime.context.time + cooldown;
+  runtime.motion.chargeHitIds = [];
+  runtime.motion.mechanicHitIds = [];
+  runtime.motion.tetherIds = [];
+  runtime.motion.slashLanes = [];
+}
+
+function timedAdvance(runtime: MechanicRuntime, cooldown: number) {
+  if (runtime.context.time >= runtime.motion.phaseEndsAt) finishMechanic(runtime, cooldown);
+}
+
+function defaultUpcoming(definition: Pick<BossMechanicDefinition, "name" | "cooldown">, motion: BossMotionState, time: number): UpcomingMechanic {
+  const remaining = Math.max(0, (motion.activeMechanicId ? motion.phaseEndsAt : motion.nextMechanicAt) - time);
+  return { name: definition.name, remaining, cycle: definition.cooldown, urgent: motion.activeMechanicId !== null || remaining < 2.5 };
+}
+
+function mechanicCopy(id: BossMechanicId) {
+  return MECHANIC_COPY_BY_ID[id];
+}
+
+export function bossMechanicIsPassive(id: BossMechanicId) {
+  return BOSS_MECHANIC_REGISTRY[id].passive === true;
+}
+
+interface LaneChargeConfig {
+  id: BossMechanicId;
+  warning: number;
+  speed: number;
+  distance: number;
+  width: number;
+  damage: number;
+  knockdown: number;
+  cooldown: number;
+  targetOrder: readonly MemberId[];
+}
+
+function chargeEndpoint(start: WorldPosition, target: WorldPosition, travelDistance: number): WorldPosition {
+  const angle = angleTo(start, target);
+  return clampToArena([
+    start[0] + Math.sin(angle) * travelDistance,
+    start[1] + Math.cos(angle) * travelDistance,
+  ]);
+}
+
+function laneChargeDefinition(config: LaneChargeConfig): BossMechanicDefinition {
+  const copy = mechanicCopy(config.id);
+  const definition: BossMechanicDefinition = {
+    id: config.id,
+    name: copy.name,
+    instruction: copy.instruction,
+    cooldown: config.cooldown,
+    start(runtime) {
+      const targetId = chooseLivingTarget(runtime.party, config.targetOrder, runtime.motion.mechanicCount);
+      const end = chargeEndpoint(runtime.motion.position, runtime.context.partyPositions[targetId], config.distance);
+      runtime.motion.mode = "telegraph";
+      runtime.motion.chargeTargetId = targetId;
+      runtime.motion.chargeStart = [...runtime.motion.position];
+      runtime.motion.chargeEnd = end;
+      runtime.motion.chargeHitIds = [];
+      runtime.motion.phaseStartedAt = runtime.context.time;
+      runtime.motion.phaseEndsAt = runtime.context.time + config.warning;
+      runtime.motion.slashLanes = [{
+        id: `${config.id}-${runtime.motion.mechanicCount}`,
+        start: [...runtime.motion.position],
+        end,
+        width: config.width,
+        damage: config.damage,
+      }];
+      runtime.events.push({
+        at: runtime.context.time,
+        message: `${copy.name} targets ${memberName(runtime.party, targetId)}. ${copy.instruction}`,
+        tone: "danger",
+        pulseKind: "charge",
+        targetId,
+      });
+    },
+    advance(runtime) {
+      const { context, motion } = runtime;
+      if (motion.mode === "telegraph" && context.time >= motion.phaseEndsAt) {
+        motion.mode = "charging";
+        motion.phaseStartedAt = context.time;
+        motion.phaseEndsAt = context.time + distance(motion.position, motion.chargeEnd) / config.speed;
+        return;
+      }
+      if (motion.mode !== "charging") return;
+      const previous = [...motion.position] as WorldPosition;
+      motion.position = moveToward(motion.position, motion.chargeEnd, config.speed * context.delta);
+      runtime.party = runtime.party.map((member) => {
+        if (member.hp <= 0 || motion.chargeHitIds.includes(member.id)) return member;
+        if (pointToSegmentDistance(context.partyPositions[member.id], previous, motion.position) > config.width * 0.5) return member;
+        motion.chargeHitIds.push(member.id);
+        return {
+          ...context.damageMember(member, config.damage, context.partyPositions[member.id], context.time),
+          knockedUntil: context.time + config.knockdown,
+        };
+      });
+      if (distance(motion.position, motion.chargeEnd) < 0.08 || context.time >= motion.phaseEndsAt) {
+        motion.position = [...motion.chargeEnd];
+        finishMechanic(runtime, config.cooldown);
+      }
+    },
+    animationCue: (motion) => motion.mode === "charging" ? "move" : "attack",
+  };
+  definition.upcoming = (motion, time) => defaultUpcoming(definition, motion, time);
+  return definition;
+}
+
+interface CircleAttackConfig {
+  id: BossMechanicId;
+  warning: number;
+  radius: number;
+  damage: number;
+  cooldown: number;
+  kind: CircleHazard["kind"];
+  targets: number;
+  duration?: number;
+  tickInterval?: number;
+  centeredOnBoss?: boolean;
+  stagger?: number;
+}
+
+function circleAttackDefinition(config: CircleAttackConfig): BossMechanicDefinition {
+  const copy = mechanicCopy(config.id);
+  const definition: BossMechanicDefinition = {
+    id: config.id,
+    name: copy.name,
+    instruction: copy.instruction,
+    cooldown: config.cooldown,
+    start(runtime) {
+      const activatesAt = runtime.context.time + config.warning;
+      const targetIds = Array.from({ length: config.targets }, (_, offset) =>
+        chooseLivingTarget(runtime.party, TARGET_ORDER, runtime.motion.mechanicCount + offset));
+      const centers = config.centeredOnBoss
+        ? [[...runtime.motion.position] as WorldPosition]
+        : targetIds.map((targetId) => [...runtime.context.partyPositions[targetId]] as WorldPosition);
+      runtime.motion.mode = config.id === "stormfall" ? "skyfall" : "golem_crownfall";
+      runtime.motion.phaseStartedAt = runtime.context.time;
+      runtime.motion.phaseEndsAt = activatesAt + (centers.length - 1) * (config.stagger ?? 0) + Math.max(0.32, config.duration ?? 0.32);
+      runtime.motion.hazards.push(...centers.map((center, index) => createCircleHazard({
+        id: `${config.id}-${runtime.motion.mechanicCount}-${index}`,
+        kind: config.kind,
+        center,
+        radius: config.radius,
+        activatesAt: activatesAt + index * (config.stagger ?? 0),
+        duration: config.duration ?? 0.32,
+        damage: config.damage,
+        tickInterval: config.tickInterval,
+      })));
+      runtime.events.push({
+        at: runtime.context.time,
+        message: `${copy.name}: ${copy.instruction}`,
+        tone: "danger",
+        pulseKind: "skyfall",
+        targetId: targetIds[0],
+      });
+    },
+    advance(runtime) { timedAdvance(runtime, config.cooldown); },
+    animationCue: () => "special",
+  };
+  definition.upcoming = (motion, time) => defaultUpcoming(definition, motion, time);
+  return definition;
+}
+
+interface LaneAttackConfig {
+  id: BossMechanicId;
+  warning: number;
+  width: number;
+  damage: number;
+  cooldown: number;
+  angles: readonly number[];
+  rotateFollowup?: number;
+}
+
+function laneFromAngle(id: string, center: WorldPosition, angle: number, width: number, damage: number): SlashLane {
+  const dx = Math.sin(angle) * 9;
+  const dz = Math.cos(angle) * 9;
+  return { id, start: [center[0] - dx, center[1] - dz], end: [center[0] + dx, center[1] + dz], width, damage };
+}
+
+function resolveLanes(runtime: MechanicRuntime, name: string) {
+  const hitIds: MemberId[] = [];
+  runtime.party = runtime.party.map((member) => {
+    if (member.hp <= 0) return member;
+    const lane = runtime.motion.slashLanes.find((entry) =>
+      pointToSegmentDistance(runtime.context.partyPositions[member.id], entry.start, entry.end) <= entry.width * 0.5);
+    if (!lane) return member;
+    hitIds.push(member.id);
+    runtime.events.push({ at: runtime.context.time, message: `${member.name} is struck by ${name}.`, tone: "danger", pulseKind: "slash", targetId: member.id });
+    return runtime.context.damageMember(member, lane.damage, runtime.context.partyPositions[member.id], runtime.context.time);
+  });
+  runtime.motion.mechanicHitIds.push(...hitIds);
+}
+
+function laneAttackDefinition(config: LaneAttackConfig): BossMechanicDefinition {
+  const copy = mechanicCopy(config.id);
+  const startLanes = (runtime: MechanicRuntime, rotation = 0) => {
+    const targetId = chooseLivingTarget(runtime.party, TARGET_ORDER, runtime.motion.mechanicCount);
+    const center = runtime.context.partyPositions[targetId];
+    const aimed = angleTo(runtime.motion.position, center) + rotation;
+    runtime.motion.slashLanes = config.angles.map((offset, index) =>
+      laneFromAngle(`${config.id}-${runtime.motion.mechanicCount}-${index}-${rotation}`, center, aimed + offset, config.width, config.damage));
+    runtime.motion.chargeTargetId = targetId;
+  };
+  const definition: BossMechanicDefinition = {
+    id: config.id,
+    name: copy.name,
+    instruction: copy.instruction,
+    cooldown: config.cooldown,
+    start(runtime) {
+      runtime.motion.mode = "mantis_line_telegraph";
+      runtime.motion.phaseStartedAt = runtime.context.time;
+      runtime.motion.phaseEndsAt = runtime.context.time + config.warning;
+      runtime.motion.chargeCount = 0;
+      runtime.motion.mechanicHitIds = [];
+      startLanes(runtime);
+      runtime.events.push({ at: runtime.context.time, message: `${copy.name}: ${copy.instruction}`, tone: "danger", pulseKind: "slash", targetId: runtime.motion.chargeTargetId });
+    },
+    advance(runtime) {
+      if (runtime.context.time < runtime.motion.phaseEndsAt) return;
+      resolveLanes(runtime, copy.name);
+      if (config.rotateFollowup && runtime.motion.chargeCount === 0) {
+        runtime.motion.chargeCount = 1;
+        runtime.motion.mode = "mantis_cross_telegraph";
+        runtime.motion.phaseStartedAt = runtime.context.time;
+        runtime.motion.phaseEndsAt = runtime.context.time + config.warning;
+        startLanes(runtime, config.rotateFollowup);
+        runtime.events.push({ at: runtime.context.time, message: `${copy.name} rotates. Find new safe ground.`, tone: "danger", pulseKind: "slash" });
+        return;
+      }
+      finishMechanic(runtime, config.cooldown);
+    },
+    animationCue: () => "attack",
+  };
+  definition.upcoming = (motion, time) => defaultUpcoming(definition, motion, time);
+  return definition;
+}
+
+const BULL_TARGETS: readonly MemberId[] = ["nia", "orin", "vale", "aelia", "brann"];
+
+const bullCharge = laneChargeDefinition({ id: "bull-charge", warning: BULL_CHARGE.warning, speed: BULL_CHARGE.speed, distance: BULL_CHARGE.distance, width: BULL_CHARGE.hitRadius * 2, damage: BULL_CHARGE.damage, knockdown: BULL_CHARGE.knockdown, cooldown: BULL_CHARGE.cooldown, targetOrder: BULL_TARGETS });
+const destructionRush = laneChargeDefinition({ id: "destruction-rush", warning: 1.45, speed: 11.5, distance: 14, width: 2.5, damage: 27, knockdown: 0.55, cooldown: 3.8, targetOrder: BULL_TARGETS });
+const burrowRush = laneChargeDefinition({ id: "burrow-rush", warning: 1.3, speed: 10.8, distance: 13, width: 2, damage: 25, knockdown: 0.35, cooldown: 3.8, targetOrder: ["aelia", "nia", "orin", "vale", "brann"] });
+const sidewinderRush = laneChargeDefinition({ id: "sidewinder-rush", warning: 1.25, speed: 11, distance: 13.2, width: 2.3, damage: 24, knockdown: 0.42, cooldown: 3.7, targetOrder: BULL_TARGETS });
+
+const crushingPounce: BossMechanicDefinition = {
+  id: "crushing-pounce",
+  name: bossMechanicName("crushing-pounce"),
+  instruction: mechanicCopy("crushing-pounce").instruction,
+  cooldown: 4,
+  start(runtime) {
+    const targetId = chooseLivingTarget(runtime.party, ["aelia", "nia", "orin", "vale", "brann"], runtime.motion.mechanicCount);
+    runtime.motion.mode = "stacking";
+    runtime.motion.pounceTargetId = targetId;
+    runtime.motion.pounceCenter = [...runtime.context.partyPositions[targetId]];
+    runtime.motion.phaseStartedAt = runtime.context.time;
+    runtime.motion.phaseEndsAt = runtime.context.time + BULL_POUNCE.stackDuration;
+    runtime.events.push({ at: runtime.context.time, message: `Crushing Pounce marks ${memberName(runtime.party, targetId)}. Stack to split the impact.`, tone: "danger", pulseKind: "pounce", targetId });
+  },
+  advance(runtime) {
+    const { motion, context } = runtime;
+    if (motion.mode === "stacking") {
+      motion.pounceCenter = [...context.partyPositions[motion.pounceTargetId]];
+      if (context.time < motion.phaseEndsAt) return;
+      motion.mode = "pouncing";
+      motion.chargeStart = [...motion.position];
+      motion.chargeEnd = [...motion.pounceCenter];
+      motion.phaseStartedAt = context.time;
+      motion.phaseEndsAt = context.time + BULL_POUNCE.leapDuration;
+      return;
+    }
+    if (motion.mode !== "pouncing") return;
+    motion.position = moveToward(motion.position, motion.chargeEnd, 16 * context.delta);
+    if (context.time < motion.phaseEndsAt && distance(motion.position, motion.chargeEnd) >= 0.08) return;
+    const stackedIds = runtime.party.filter((member) => member.hp > 0 && distance(context.partyPositions[member.id], motion.pounceCenter) <= BULL_POUNCE.stackRadius).map((member) => member.id);
+    const damage = BULL_POUNCE.sharedDamage / Math.max(1, stackedIds.length);
+    runtime.party = runtime.party.map((member) => stackedIds.includes(member.id)
+      ? context.damageMember(member, damage, context.partyPositions[member.id], context.time)
+      : member);
+    runtime.events.push({ at: context.time, message: `Crushing Pounce deals ${Math.round(damage)} damage across ${stackedIds.length} stacked allies.`, tone: "danger", pulseKind: "pounce", targetId: motion.pounceTargetId });
+    finishMechanic(runtime, BULL_POUNCE.cooldown);
+  },
+  animationCue: (motion) => motion.mode === "pouncing" ? "special" : "attack",
+};
+crushingPounce.upcoming = (motion, time) => defaultUpcoming(crushingPounce, motion, time);
+
+function instantTimedDefinition(id: BossMechanicId, cooldown: number, start: (runtime: MechanicRuntime) => void, cue: BossAnimationCue = "attack"): BossMechanicDefinition {
+  const copy = mechanicCopy(id);
+  const definition: BossMechanicDefinition = {
+    id, name: copy.name, instruction: copy.instruction, cooldown,
+    start(runtime) {
+      runtime.motion.mode = "golem_shockwave";
+      runtime.motion.phaseStartedAt = runtime.context.time;
+      runtime.motion.phaseEndsAt = runtime.context.time + 0.55;
+      start(runtime);
+    },
+    advance(runtime) { timedAdvance(runtime, cooldown); },
+    animationCue: () => cue,
+  };
+  definition.upcoming = (motion, time) => defaultUpcoming(definition, motion, time);
+  return definition;
+}
+
+const cinderNova = instantTimedDefinition("cinder-nova", 5, (runtime) => {
+  runtime.party = runtime.party.map((member) => member.hp > 0
+    ? runtime.context.damageMember(member, 13, runtime.context.partyPositions[member.id], runtime.context.time)
+    : member);
+  runtime.events.push({ at: runtime.context.time, message: "Cinder Nova strikes the party.", tone: "danger", pulseKind: "boss" });
+}, "special");
+
+const emberBrand = instantTimedDefinition("ember-brand", 5, (runtime) => {
+  const targetId = chooseLivingTarget(runtime.party, BULL_TARGETS, runtime.motion.mechanicCount);
+  runtime.party = runtime.party.map((member) => member.id === targetId ? {
+    ...member,
+    debuffs: [...member.debuffs, { id: `ember-brand-${runtime.motion.mechanicCount}`, name: "Ember Brand", expiresAt: runtime.context.time + 7, nextTickAt: runtime.context.time + 1, tickDamage: 6 }],
+  } : member);
+  runtime.events.push({ at: runtime.context.time, message: `Ember Brand afflicts ${memberName(runtime.party, targetId)}.`, tone: "danger", pulseKind: "debuff", targetId });
+});
+
+const bindingWeb: BossMechanicDefinition = {
+  id: "binding-web", name: bossMechanicName("binding-web"), instruction: mechanicCopy("binding-web").instruction, cooldown: 4,
+  start(runtime) {
+    const pairs: readonly (readonly [MemberId, MemberId])[] = [["brann", "vale"], ["nia", "orin"], ["aelia", "nia"]];
+    const pair = pairs[(runtime.motion.mechanicCount - 1) % pairs.length];
+    const first = chooseLivingTarget(runtime.party, pair, 0);
+    const second = chooseLivingTarget(runtime.party, pair.filter((id) => id !== first), 0);
+    runtime.motion.mode = "tethering";
+    runtime.motion.tetherIds = [first, second];
+    runtime.motion.tetherBreakDistance = 6.8;
+    runtime.motion.phaseStartedAt = runtime.context.time;
+    runtime.motion.phaseEndsAt = runtime.context.time + 4.5;
+    runtime.events.push({ at: runtime.context.time, message: `Binding Web links ${memberName(runtime.party, first)} and ${memberName(runtime.party, second)}. Spread apart.`, tone: "danger", pulseKind: "tether", targetId: first });
+  },
+  advance(runtime) {
+    const [first, second] = runtime.motion.tetherIds;
+    if (!first || !second || distance(runtime.context.partyPositions[first], runtime.context.partyPositions[second]) >= runtime.motion.tetherBreakDistance) {
+      runtime.events.push({ at: runtime.context.time, message: "Binding Web snaps. Formation is free.", pulseKind: "tether" });
+      finishMechanic(runtime, 4);
+      return;
+    }
+    if (runtime.context.time < runtime.motion.phaseEndsAt) return;
+    runtime.party = runtime.party.map((member) => runtime.motion.tetherIds.includes(member.id)
+      ? { ...runtime.context.damageMember(member, 24, runtime.context.partyPositions[member.id], runtime.context.time), knockedUntil: runtime.context.time + 1.4 }
+      : member);
+    runtime.events.push({ at: runtime.context.time, message: "Binding Web constricts and roots its targets.", tone: "danger", pulseKind: "tether" });
+    finishMechanic(runtime, 4);
+  },
+  animationCue: () => "attack",
+};
+bindingWeb.upcoming = (motion, time) => defaultUpcoming(bindingWeb, motion, time);
+
+const venomPurge = instantTimedDefinition("venom-purge", 4, (runtime) => {
+  const targets = [0, 1].map((offset) => chooseLivingTarget(runtime.party, BULL_TARGETS, runtime.motion.mechanicCount + offset));
+  runtime.motion.mode = "venom_cast";
+    runtime.motion.phaseEndsAt = runtime.context.time + VENOM_PURGE.castDuration;
+  runtime.party = runtime.party.map((member) => targets.includes(member.id) ? {
+    ...member,
+    debuffs: [...member.debuffs, { id: `widow-venom-${runtime.motion.mechanicCount}-${member.id}`, name: "Widow Venom", expiresAt: runtime.context.time + VENOM_PURGE.duration, nextTickAt: runtime.context.time + 1, tickDamage: VENOM_PURGE.tickDamage }],
+  } : member);
+  runtime.events.push({ at: runtime.context.time, message: "Venom Purge applies Widow Venom. Move away before cleansing.", tone: "danger", pulseKind: "venom", targetId: targets[0] });
+});
+
+const stormBreath: BossMechanicDefinition = {
+  id: "storm-breath", name: bossMechanicName("storm-breath"), instruction: mechanicCopy("storm-breath").instruction, cooldown: 4,
+  start(runtime) {
+    const aimed = angleTo(runtime.motion.position, runtime.context.partyPositions.brann);
+    const direction = runtime.motion.mechanicCount % 2 === 0 ? 1 : -1;
+    runtime.motion.mode = "breath_telegraph";
+    runtime.motion.breathStartAngle = aimed - direction * Math.PI * 0.475;
+    runtime.motion.breathEndAngle = aimed + direction * Math.PI * 0.475;
+    runtime.motion.breathAngle = runtime.motion.breathStartAngle;
+    runtime.motion.phaseStartedAt = runtime.context.time;
+    runtime.motion.phaseEndsAt = runtime.context.time + SKY_SWEEPER_BREATH.telegraphDuration;
+    runtime.motion.mechanicNextDamageAt = {};
+    runtime.events.push({ at: runtime.context.time, message: "Storm Breath gathers. Rotate behind the sweep.", tone: "danger", pulseKind: "breath" });
+  },
+  advance(runtime) {
+    const { motion, context } = runtime;
+    if (motion.mode === "breath_telegraph" && context.time >= motion.phaseEndsAt) {
+      motion.mode = "breath_sweeping";
+      motion.phaseStartedAt = context.time;
+      motion.phaseEndsAt = context.time + SKY_SWEEPER_BREATH.sweepDuration;
+      return;
+    }
+    if (motion.mode !== "breath_sweeping") return;
+    const progress = Math.max(0, Math.min(1, (context.time - motion.phaseStartedAt) / SKY_SWEEPER_BREATH.sweepDuration));
+    motion.breathAngle = motion.breathStartAngle + (motion.breathEndAngle - motion.breathStartAngle) * progress;
+    runtime.party = runtime.party.map((member) => {
+      if (member.hp <= 0) return member;
+      const dx = context.partyPositions[member.id][0] - motion.position[0];
+      const dz = context.partyPositions[member.id][1] - motion.position[1];
+      const memberAngle = Math.atan2(dx, dz);
+      const exposed = Math.hypot(dx, dz) <= SKY_SWEEPER_BREATH.range && Math.abs(Math.atan2(Math.sin(memberAngle - motion.breathAngle), Math.cos(memberAngle - motion.breathAngle))) <= SKY_SWEEPER_BREATH.halfAngle;
+      if (!exposed) return member;
+      const nextAt = motion.mechanicNextDamageAt[member.id] ?? context.time;
+      if (nextAt > context.time) return member;
+      motion.mechanicNextDamageAt[member.id] = context.time + SKY_SWEEPER_BREATH.tickInterval;
+      return context.damageMember(member, SKY_SWEEPER_BREATH.tickDamage, context.partyPositions[member.id], context.time);
+    });
+    if (context.time >= motion.phaseEndsAt) finishMechanic(runtime, SKY_SWEEPER_BREATH.cooldown);
+  },
+  animationCue: () => "attack",
+};
+stormBreath.upcoming = (motion, time) => defaultUpcoming(stormBreath, motion, time);
+
+const stormfall = circleAttackDefinition({ id: "stormfall", warning: 2, radius: 1.8, damage: 30, cooldown: 4, kind: "skyfall", targets: 3, duration: 5, tickInterval: 1, stagger: 0.9 });
+const crushingTide = circleAttackDefinition({ id: "crushing-tide", warning: 1.35, radius: 1.7, damage: 26, cooldown: 3.7, kind: "tidal_burst", targets: 3 });
+const hauntingRifts = circleAttackDefinition({ id: "haunting-rifts", warning: 1.45, radius: 1.75, damage: 5, cooldown: 3.9, kind: "soul_rift", targets: 2, duration: 4.2, tickInterval: 0.8 });
+const ultimateSkyfall = circleAttackDefinition({ id: "ultimate-skyfall", warning: 1.5, radius: 1.85, damage: 28, cooldown: 4, kind: "crownfall", targets: 3 });
+const ruinQuake = circleAttackDefinition({ id: "ruin-quake", warning: 1.35, radius: 3.6, damage: 31, cooldown: 3.8, kind: "quake", targets: 1, centeredOnBoss: true });
+
+const elementalBeam = laneAttackDefinition({ id: "elemental-beam", warning: 0.9, width: 1.65, damage: 32, cooldown: 3.4, angles: [0] });
+const guardianCross = laneAttackDefinition({ id: "guardian-cross", warning: 0.9, width: 1.45, damage: 25, cooldown: 3.4, angles: [-Math.PI * 0.18, Math.PI * 0.18] });
+const destructionPulse = laneAttackDefinition({ id: "destruction-pulse", warning: 1.2, width: 1.25, damage: 24, cooldown: 3.8, angles: [0, Math.PI / 3, -Math.PI / 3] });
+const vineScissors = laneAttackDefinition({ id: "vine-scissors", warning: 1.25, width: 1.55, damage: 22, cooldown: 3.9, angles: [0, Math.PI / 2], rotateFollowup: Math.PI / 4 });
+
+const ricochetRush: BossMechanicDefinition = {
+  ...laneChargeDefinition({ id: "ricochet-rush", warning: 1.25, speed: 12.5, distance: 13, width: 2.25, damage: 22, knockdown: 0.4, cooldown: 3.6, targetOrder: ["orin", "nia", "aelia", "vale", "brann"] }),
+  advance(runtime) {
+    const motion = runtime.motion;
+    if (motion.mode === "telegraph" && runtime.context.time >= motion.phaseEndsAt) {
+      motion.mode = "charging";
+      motion.chargeCount = 0;
+      motion.phaseStartedAt = runtime.context.time;
+      motion.phaseEndsAt = runtime.context.time + distance(motion.position, motion.chargeEnd) / 12.5;
+      return;
+    }
+    if (motion.mode !== "charging") return;
+    const previous = [...motion.position] as WorldPosition;
+    motion.position = moveToward(motion.position, motion.chargeEnd, 12.5 * runtime.context.delta);
+    runtime.party = runtime.party.map((member) => {
+      if (member.hp <= 0 || motion.chargeHitIds.includes(member.id) || pointToSegmentDistance(runtime.context.partyPositions[member.id], previous, motion.position) > 1.125) return member;
+      motion.chargeHitIds.push(member.id);
+      return runtime.context.damageMember(member, 22, runtime.context.partyPositions[member.id], runtime.context.time);
+    });
+    if (distance(motion.position, motion.chargeEnd) >= 0.08 && runtime.context.time < motion.phaseEndsAt) return;
+    motion.hazards.push(createCircleHazard({ id: `ricochet-lava-${motion.mechanicCount}-${motion.chargeCount}`, kind: "lava_pool", center: motion.chargeEnd, radius: 1.5, activatesAt: runtime.context.time, duration: 4.5, damage: 5, tickInterval: 0.8 }));
+    if (motion.chargeCount === 0) {
+      const targetId = chooseLivingTarget(runtime.party, BULL_TARGETS, motion.mechanicCount + 2);
+      const start = [...motion.chargeEnd] as WorldPosition;
+      const end = chargeEndpoint(start, runtime.context.partyPositions[targetId], 13);
+      motion.position = start;
+      motion.chargeStart = start;
+      motion.chargeEnd = end;
+      motion.chargeTargetId = targetId;
+      motion.chargeHitIds = [];
+      motion.chargeCount = 1;
+      motion.phaseEndsAt = runtime.context.time + distance(start, end) / 12.5;
+      motion.slashLanes = [{ id: `ricochet-${motion.mechanicCount}-1`, start, end, width: 2.25, damage: 22 }];
+      runtime.events.push({ at: runtime.context.time, message: `Ricochet Rush rebounds toward ${memberName(runtime.party, targetId)}.`, tone: "danger", pulseKind: "charge", targetId });
+      return;
+    }
+    finishMechanic(runtime, 3.6);
+  },
+};
+
+const meteorSlam: BossMechanicDefinition = {
+  id: "meteor-slam", name: bossMechanicName("meteor-slam"), instruction: mechanicCopy("meteor-slam").instruction, cooldown: 3.6,
+  start(runtime) {
+    const activatesAt = runtime.context.time + 1.3;
+    runtime.motion.mode = "cinderback_slam";
+    runtime.motion.phaseStartedAt = runtime.context.time;
+    runtime.motion.phaseEndsAt = activatesAt + 0.3;
+    runtime.motion.hazards.push(createCircleHazard({ id: `meteor-slam-${runtime.motion.mechanicCount}`, kind: "quake", center: runtime.motion.position, radius: 3.1, activatesAt, duration: 0.3, damage: 29 }));
+    for (let index = 0; index < 3; index += 1) {
+      const angle = index / 3 * Math.PI * 2;
+      runtime.motion.hazards.push(createCircleHazard({ id: `meteor-flame-${runtime.motion.mechanicCount}-${index}`, kind: "lava_pool", center: clampToArena([runtime.motion.position[0] + Math.sin(angle) * 3.7, runtime.motion.position[1] + Math.cos(angle) * 3.7]), radius: 1.5, activatesAt, duration: 4.5, damage: 5, tickInterval: 0.8 }));
+    }
+    runtime.events.push({ at: runtime.context.time, message: "Meteor Slam: leave the impact and spreading flame.", tone: "danger", pulseKind: "boss" });
+  },
+  advance(runtime) { timedAdvance(runtime, 3.6); },
+  animationCue: () => "special",
+};
+meteorSlam.upcoming = (motion, time) => defaultUpcoming(meteorSlam, motion, time);
+
+const hourglassEruption: BossMechanicDefinition = {
+  id: "hourglass-eruption", name: bossMechanicName("hourglass-eruption"), instruction: mechanicCopy("hourglass-eruption").instruction, cooldown: 3.8,
+  start(runtime) {
+    const activatesAt = runtime.context.time + 1.55;
+    for (let index = 0; index < 3; index += 1) {
+      const targetId = chooseLivingTarget(runtime.party, BULL_TARGETS, runtime.motion.mechanicCount + index);
+      runtime.motion.hazards.push(createCircleHazard({ id: `stinger-${runtime.motion.mechanicCount}-${index}`, kind: "stinger_eruption", center: runtime.context.partyPositions[targetId], radius: 1.75, activatesAt, duration: 0.32, damage: 27 }));
+    }
+    runtime.motion.hazards.push(createCircleHazard({ id: `hourglass-${runtime.motion.mechanicCount}`, kind: "hourglass", center: clampToArena([runtime.motion.position[0], runtime.motion.position[1] + 3]), radius: 2.55, activatesAt: activatesAt + 0.9, duration: 3.6, damage: 6, tickInterval: 0.75 }));
+    runtime.motion.mode = "sandglass_hourglass";
+    runtime.motion.phaseStartedAt = runtime.context.time;
+    runtime.motion.phaseEndsAt = activatesAt + 4.5;
+    runtime.events.push({ at: runtime.context.time, message: "Hourglass Eruption: leave the eruptions and moving zone.", tone: "danger", pulseKind: "skyfall" });
+  },
+  advance(runtime) { timedAdvance(runtime, 3.8); },
+  animationCue: () => "special",
+};
+hourglassEruption.upcoming = (motion, time) => defaultUpcoming(hourglassEruption, motion, time);
+
+const triBurst: BossMechanicDefinition = {
+  id: "tri-burst", name: bossMechanicName("tri-burst"), instruction: mechanicCopy("tri-burst").instruction, cooldown: 4,
+  start(runtime) {
+    const firstActivation = runtime.context.time + 1.2;
+    const bands = [{ innerRadius: 0, radius: 2.35 }, { innerRadius: 2.35, radius: 4.7 }, { innerRadius: 4.7, radius: 7.05 }];
+    runtime.motion.mode = "golem_shockwave";
+    runtime.motion.phaseStartedAt = runtime.context.time;
+    runtime.motion.phaseEndsAt = firstActivation + 1.62;
+    runtime.motion.hazards.push(...bands.map((band, index) => createCircleHazard({ id: `tri-burst-${runtime.motion.mechanicCount}-${index}`, kind: "royal_shockwave", center: runtime.motion.position, innerRadius: band.innerRadius, radius: band.radius, activatesAt: firstActivation + index * 0.65, duration: 0.3, damage: 19 })));
+    runtime.events.push({ at: runtime.context.time, message: "Tri-Burst expands in three rings. Follow the safe bands.", tone: "danger", pulseKind: "boss" });
+  },
+  advance(runtime) { timedAdvance(runtime, 4); },
+  animationCue: () => "special",
+};
+triBurst.upcoming = (motion, time) => defaultUpcoming(triBurst, motion, time);
+
+function telegraphDefinition(id: BossMechanicId): BossMechanicDefinition {
+  const copy = mechanicCopy(id);
+  const definition: BossMechanicDefinition = {
+    id, name: copy.name, instruction: copy.instruction, cooldown: 5,
+    start(runtime) {
+      const started = beginPoolMechanic(runtime.motion, runtime.party, runtime.context.partyPositions, runtime.context.time, id);
+      runtime.motion = started.motion;
+      runtime.motion.mode = "golem_crownfall";
+      runtime.events.push(started.event);
+    },
+    advance(runtime) {
+      for (const telegraph of runtime.motion.poolTelegraphs) {
+        if (telegraph.kind === "memory") {
+          if (!telegraph.resolved) runtime.party = resolveMemorySequence(telegraph, runtime.party, runtime.context.partyPositions, runtime.context, runtime.events);
+          continue;
+        }
+        if (telegraph.kind === "soul-siphon") {
+          if (!telegraph.resolved) runtime.party = resolveSoulSiphon(telegraph, runtime.party, runtime.context.partyPositions, runtime.context, runtime.events);
+          continue;
+        }
+        if (telegraph.resolved || runtime.context.time < telegraph.activatesAt) continue;
+        runtime.party = resolveTelegraph(telegraph, runtime.party, runtime.context.partyPositions, runtime.context, runtime.events);
+        telegraph.resolved = true;
+      }
+      runtime.motion.poolTelegraphs = runtime.motion.poolTelegraphs.filter((telegraph) => telegraph.expiresAt > runtime.context.time);
+      if (!runtime.motion.poolTelegraphs.length) finishMechanic(runtime, 5);
+    },
+    upcoming(motion, time) { return upcomingPooledMechanic(motion, time) ?? defaultUpcoming(definition, motion, time); },
+    animationCue: () => id === "soul-siphon" || id === "memory-sequence" ? "special" : "attack",
+  };
+  return definition;
+}
+
+const basicMelee: BossMechanicDefinition = {
+  id: "basic-melee",
+  name: bossMechanicName("basic-melee"),
+  instruction: mechanicCopy("basic-melee").instruction,
+  cooldown: 0,
+  passive: true,
+  start() {},
+  advance(runtime) {
+    applyMelee(runtime.boss, runtime.motion, runtime.party, runtime.context.partyPositions, runtime.context.time, 2.5, 15, runtime.context.damageMember);
+  },
+  animationCue: () => "idle",
+};
+
+export const BOSS_MECHANIC_REGISTRY: Record<BossMechanicId, BossMechanicDefinition> = {
+  "basic-melee": basicMelee,
+  "bull-charge": bullCharge,
+  "crushing-pounce": crushingPounce,
+  "cinder-nova": cinderNova,
+  "ember-brand": emberBrand,
+  "binding-web": bindingWeb,
+  "venom-purge": venomPurge,
+  "storm-breath": stormBreath,
+  stormfall,
+  "elemental-beam": elementalBeam,
+  "guardian-cross": guardianCross,
+  "destruction-rush": destructionRush,
+  "ruin-quake": ruinQuake,
+  "destruction-pulse": destructionPulse,
+  "ricochet-rush": ricochetRush,
+  "meteor-slam": meteorSlam,
+  "burrow-rush": burrowRush,
+  "hourglass-eruption": hourglassEruption,
+  "sidewinder-rush": sidewinderRush,
+  "crushing-tide": crushingTide,
+  "vine-scissors": vineScissors,
+  "haunting-rifts": hauntingRifts,
+  "tri-burst": triBurst,
+  "ultimate-skyfall": ultimateSkyfall,
+  "meteor-spread": telegraphDefinition("meteor-spread"),
+  "hollow-collapse": telegraphDefinition("hollow-collapse"),
+  "aetheric-soak": telegraphDefinition("aetheric-soak"),
+  "prism-beam": telegraphDefinition("prism-beam"),
+  "memory-sequence": telegraphDefinition("memory-sequence"),
+  "soul-siphon": telegraphDefinition("soul-siphon"),
+};
+
+function scheduledMechanicId(
+  loadout: readonly [BossMechanicId, BossMechanicId, ...BossMechanicId[]],
+  mechanicCount: number,
+) {
+  let activeCount = 0;
+  for (const id of loadout) if (!BOSS_MECHANIC_REGISTRY[id].passive) activeCount += 1;
+  if (!activeCount) throw new Error("Boss loadout requires at least one active mechanic.");
+  let targetIndex = mechanicCount % activeCount;
+  for (const id of loadout) {
+    if (BOSS_MECHANIC_REGISTRY[id].passive) continue;
+    if (targetIndex === 0) return id;
+    targetIndex -= 1;
+  }
+  return loadout[0];
+}
+
+export function advanceMechanicLoadout(
+  context: BossMechanicContext,
+  loadout: readonly [BossMechanicId, BossMechanicId, ...BossMechanicId[]],
+): BossMechanicResult {
+  const runtime: MechanicRuntime = {
+    context,
+    boss: { ...context.boss },
+    motion: cloneMotion(context.motion),
+    party: context.party,
+    events: [],
+  };
+
+  if (runtime.motion.mode === "holding") returnBossToArenaCenter(runtime.motion, context.delta, 2);
+
+  for (const mechanicId of loadout) {
+    const definition = BOSS_MECHANIC_REGISTRY[mechanicId];
+    if (definition.passive) definition.advance(runtime);
+  }
+
+  if (runtime.motion.activeMechanicId) {
+    BOSS_MECHANIC_REGISTRY[runtime.motion.activeMechanicId].advance(runtime);
+  }
+
+  if (!runtime.motion.activeMechanicId && context.time >= runtime.motion.nextMechanicAt) {
+    const mechanicId = scheduledMechanicId(loadout, runtime.motion.mechanicCount);
+    runtime.motion.mechanicCount += 1;
+    runtime.motion.activeMechanicId = mechanicId;
+    runtime.motion.nextMechanicAt = Number.POSITIVE_INFINITY;
+    BOSS_MECHANIC_REGISTRY[mechanicId].start(runtime);
+  }
+
+  runtime.party = resolveCircleHazards(runtime.motion, runtime.party, context.partyPositions, context.time, context.damageMember, runtime.events);
+  return { boss: runtime.boss, motion: runtime.motion, party: runtime.party, events: runtime.events };
+}
+
+export function upcomingLoadoutMechanic(
+  loadout: readonly [BossMechanicId, BossMechanicId, ...BossMechanicId[]],
+  motion: BossMotionState,
+  time: number,
+): UpcomingMechanic {
+  const id = motion.activeMechanicId ?? scheduledMechanicId(loadout, motion.mechanicCount);
+  const definition = BOSS_MECHANIC_REGISTRY[id];
+  return definition.upcoming?.(motion, time) ?? defaultUpcoming(definition, motion, time);
+}
+
+export function bossAnimationCue(motion: BossMotionState): BossAnimationCue {
+  return motion.activeMechanicId ? BOSS_MECHANIC_REGISTRY[motion.activeMechanicId].animationCue(motion) : "idle";
+}
+
+export function dropVenomPool(motion: BossMotionState, memberId: MemberId, center: WorldPosition, time: number) {
+  const next = cloneMotion(motion);
+  next.hazards.push(createCircleHazard({ id: `venom-pool-${memberId}-${time.toFixed(2)}`, kind: "venom_pool", center, radius: VENOM_PURGE.poolRadius, activatesAt: time + 0.25, duration: VENOM_PURGE.poolDuration, damage: VENOM_PURGE.poolDamage, tickInterval: 1 }));
+  return next;
+}
+
+export function handleMechanicDispel(
+  motion: BossMotionState,
+  memberId: MemberId,
+  position: WorldPosition,
+  time: number,
+  debuffNames: readonly string[],
+) {
+  if (debuffNames.includes("Widow Venom")) {
+    return {
+      motion: dropVenomPool(motion, memberId, position, time),
+      message: "Widow Venom purged. A venom pool forms where the target stood.",
+    };
+  }
+  return { motion, message: "Harmful magic removed." };
+}

src/game/bosses/mournveilGhost.ts

@@ -1,154 +0,0 @@
-import { BOSS_DEFINITIONS } from "../bossCatalog";
-import { angleTo, pointToSegmentDistance } from "../geometry";
-import type { BossMotionState, BossState, MemberId, SlashLane, WorldPosition } from "../types";
-import { applyMelee, cloneMotion, createBaseMotion, createBossStateFor, createCircleHazard, resolveCircleHazards, returnBossToArenaCenter } from "./shared";
-import type { BossMechanicContext, BossMechanicResult, UpcomingMechanic } from "./types";
-
-export const MOURNVEIL = {
-  firstAt: 5.3,
-  repeatDelay: 3.9,
-  crossWarning: 1.35,
-  followupWarning: 1.05,
-  laneWidth: 1.55,
-  laneDamage: 22,
-  riftWarning: 1.45,
-  riftRadius: 1.75,
-  riftDamage: 5,
-  riftDuration: 4.2,
-  recoverDuration: 0.75,
-} as const;
-
-const RIFT_TARGETS: readonly (readonly MemberId[])[] = [
-  ["aelia", "nia"],
-  ["orin", "vale"],
-  ["brann", "aelia"],
-];
-
-export function createMournveilState(): BossState {
-  const definition = BOSS_DEFINITIONS["mournveil-ghost"];
-  return createBossStateFor(definition.id, definition.name, definition.maxHp, 2.35);
-}
-
-export function createMournveilMotion(): BossMotionState {
-  return { ...createBaseMotion("mournveil-ghost"), position: [0, -6.6], nextMechanicAt: MOURNVEIL.firstAt };
-}
-
-function crossLanes(center: WorldPosition, angle: number, mechanicCount: number, phase: number): SlashLane[] {
-  return [angle, angle + Math.PI / 2].map((laneAngle, index) => {
-    const dx = Math.sin(laneAngle) * 9;
-    const dz = Math.cos(laneAngle) * 9;
-    return {
-      id: `mournveil-cross-${mechanicCount}-${phase}-${index}`,
-      start: [center[0] - dx, center[1] - dz],
-      end: [center[0] + dx, center[1] + dz],
-      width: MOURNVEIL.laneWidth,
-      damage: MOURNVEIL.laneDamage,
-    };
-  });
-}
-
-function resolveCross(motion: BossMotionState, context: BossMechanicContext, party: BossMechanicContext["party"], events: BossMechanicResult["events"]) {
-  const hitIds: MemberId[] = [];
-  const nextParty = party.map((member) => {
-    if (member.hp <= 0) return member;
-    const hit = motion.slashLanes.some((lane) => pointToSegmentDistance(context.partyPositions[member.id], lane.start, lane.end) <= lane.width * 0.5);
-    if (!hit) return member;
-    hitIds.push(member.id);
-    events.push({ at: context.time, message: `${member.name} is cut by Vine Scissors.`, tone: "danger", pulseKind: "slash", targetId: member.id });
-    return context.damageMember(member, MOURNVEIL.laneDamage, context.partyPositions[member.id], context.time);
-  });
-  return { party: nextParty, hitIds };
-}
-
-function beginMechanic(motion: BossMotionState, context: BossMechanicContext, events: BossMechanicResult["events"]) {
-  const mechanicCount = motion.mechanicCount + 1;
-  if (motion.mechanicCount % 2 === 0) {
-    const targetId = (["aelia", "nia", "orin", "vale", "brann"] as const)[motion.mechanicCount % 5];
-    const angle = angleTo(motion.position, context.partyPositions[targetId]);
-    events.push({ at: context.time, message: "Vine Scissors carve a spectral cross. A second cut will rotate.", tone: "danger", pulseKind: "slash", targetId });
-    return {
-      ...motion,
-      mode: "ghost_soul_cross" as const,
-      breathStartAngle: angle,
-      chargeCount: 0,
-      phaseStartedAt: context.time,
-      phaseEndsAt: context.time + MOURNVEIL.crossWarning,
-      nextMechanicAt: Number.POSITIVE_INFINITY,
-      mechanicCount,
-      mechanicHitIds: [],
-      slashLanes: crossLanes(motion.position, angle, mechanicCount, 0),
-    };
-  }
-
-  const activatesAt = context.time + MOURNVEIL.riftWarning;
-  const targetSet = RIFT_TARGETS[Math.floor(motion.mechanicCount / 2) % RIFT_TARGETS.length];
-  events.push({ at: context.time, message: "Haunting Rifts follow two allies. Carry them away from formation.", tone: "danger", pulseKind: "skyfall", targetId: targetSet[0] });
-  return {
-    ...motion,
-    mode: "ghost_haunting" as const,
-    phaseStartedAt: context.time,
-    phaseEndsAt: activatesAt + 0.35,
-    nextMechanicAt: Number.POSITIVE_INFINITY,
-    mechanicCount,
-    hazards: [
-      ...motion.hazards,
-      ...targetSet.map((targetId, index) => createCircleHazard({
-        id: `mournveil-rift-${mechanicCount}-${index}`,
-        kind: "soul_rift",
-        center: context.partyPositions[targetId],
-        radius: MOURNVEIL.riftRadius,
-        activatesAt,
-        duration: MOURNVEIL.riftDuration,
-        damage: MOURNVEIL.riftDamage,
-        tickInterval: 0.8,
-      })),
-    ],
-  };
-}
-
-export function advanceMournveilMechanics(context: BossMechanicContext): BossMechanicResult {
-  const boss = { ...context.boss };
-  let motion = cloneMotion(context.motion);
-  const events: BossMechanicResult["events"] = [];
-  let party = context.party;
-
-  if (motion.mode === "holding") {
-    returnBossToArenaCenter(motion, context.delta, 1.7);
-    if (context.time >= motion.nextMechanicAt) motion = beginMechanic(motion, { ...context, party }, events);
-  } else if (motion.mode === "ghost_soul_cross" && context.time >= motion.phaseEndsAt) {
-    const resolved = resolveCross(motion, { ...context, party }, party, events);
-    party = resolved.party;
-    const followupAngle = motion.breathStartAngle + Math.PI / 4;
-    motion = {
-      ...motion,
-      mode: "ghost_soul_cross_followup",
-      chargeCount: 1,
-      mechanicHitIds: resolved.hitIds,
-      slashLanes: crossLanes(motion.position, followupAngle, motion.mechanicCount, 1),
-      phaseStartedAt: context.time,
-      phaseEndsAt: context.time + MOURNVEIL.followupWarning,
-    };
-    events.push({ at: context.time, message: "Vine Scissors rotate. Find the new safe quadrant.", tone: "danger", pulseKind: "slash" });
-  } else if (motion.mode === "ghost_soul_cross_followup" && context.time >= motion.phaseEndsAt) {
-    const resolved = resolveCross(motion, { ...context, party }, party, events);
-    party = resolved.party;
-    motion = { ...motion, mode: "ghost_recover", mechanicHitIds: [...new Set([...motion.mechanicHitIds, ...resolved.hitIds])], phaseEndsAt: context.time + MOURNVEIL.recoverDuration };
-  } else if (motion.mode === "ghost_haunting" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "ghost_recover", phaseEndsAt: context.time + MOURNVEIL.recoverDuration };
-  } else if (motion.mode === "ghost_recover" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "holding", phaseEndsAt: 0, nextMechanicAt: context.time + MOURNVEIL.repeatDelay, slashLanes: [], mechanicHitIds: [] };
-  }
-
-  party = resolveCircleHazards(motion, party, context.partyPositions, context.time, context.damageMember, events);
-  applyMelee(boss, motion, party, context.partyPositions, context.time, 2.25, 14, context.damageMember);
-  return { boss, motion, party, events };
-}
-
-export function upcomingMournveilMechanic(boss: BossState, motion: BossMotionState, time: number): UpcomingMechanic {
-  if (motion.mode === "ghost_soul_cross") return { name: "Vine Scissors — first cross", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: MOURNVEIL.crossWarning, urgent: true };
-  if (motion.mode === "ghost_soul_cross_followup") return { name: "Vine Scissors — rotated cross", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: MOURNVEIL.followupWarning, urgent: true };
-  if (motion.mode === "ghost_haunting") return { name: "Haunting Rifts — spread", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: MOURNVEIL.riftWarning, urgent: true };
-  if (motion.mode === "ghost_recover") return { name: `${boss.name} exposed`, remaining: Math.max(0, motion.phaseEndsAt - time), cycle: MOURNVEIL.recoverDuration, urgent: false };
-  const remaining = Math.max(0, motion.nextMechanicAt - time);
-  return { name: motion.mechanicCount % 2 === 0 ? "Vine Scissors" : "Haunting Rifts", remaining, cycle: MOURNVEIL.repeatDelay + MOURNVEIL.crossWarning, urgent: remaining < 2.5 };
-}

src/game/bosses/obsidianRamGolem.ts

@@ -1,182 +0,0 @@
-import { clampToArena } from "../arena";
-import { BOSS_DEFINITIONS } from "../bossCatalog";
-import { angleTo, distance, moveToward, pointToSegmentDistance } from "../geometry";
-import type { BossId, BossMotionState, BossState, MemberId, SlashLane, WorldPosition } from "../types";
-import { applyMelee, chooseLivingTarget, cloneMotion, createBaseMotion, memberName, resolveCircleHazards, returnBossToArenaCenter } from "./shared";
-import type { BossMechanicContext, BossMechanicResult, UpcomingMechanic } from "./types";
-
-export const OBSIDIAN_RAM = {
-  firstAt: 5.5,
-  repeatDelay: 3.8,
-  chargeWarning: 1.45,
-  chargeSpeed: 11.5,
-  chargeDistance: 14,
-  chargeWidth: 2.5,
-  chargeDamage: 27,
-  quakeWarning: 1.35,
-  quakeRadius: 3.6,
-  quakeDamage: 31,
-  shatterWarning: 1.2,
-  shatterWidth: 1.25,
-  shatterDamage: 24,
-  recoverDuration: 0.7,
-} as const;
-
-const TARGETS: readonly MemberId[] = ["nia", "orin", "vale", "aelia", "brann"];
-
-export function createObsidianRamState(bossId: BossId = "bristlequake-boar"): BossState {
-  const definition = BOSS_DEFINITIONS[bossId];
-  return {
-    id: definition.id,
-    name: definition.name,
-    maxHp: definition.maxHp,
-    hp: definition.maxHp,
-    nextMeleeAt: 2.3,
-    nextNovaAt: Number.POSITIVE_INFINITY,
-    nextBrandAt: Number.POSITIVE_INFINITY,
-    brandCount: 0,
-  };
-}
-
-export function createObsidianRamMotion(bossId: BossId = "bristlequake-boar"): BossMotionState {
-  return { ...createBaseMotion(bossId), position: [0, -6.8], nextMechanicAt: OBSIDIAN_RAM.firstAt };
-}
-
-function laneAt(center: WorldPosition, angle: number, id: string): SlashLane {
-  const half = 9;
-  const dx = Math.sin(angle) * half;
-  const dz = Math.cos(angle) * half;
-  return {
-    id,
-    start: [center[0] - dx, center[1] - dz],
-    end: [center[0] + dx, center[1] + dz],
-    width: OBSIDIAN_RAM.shatterWidth,
-    damage: OBSIDIAN_RAM.shatterDamage,
-  };
-}
-
-function endpoint(start: WorldPosition, target: WorldPosition): WorldPosition {
-  const angle = angleTo(start, target);
-  return clampToArena([
-    start[0] + Math.sin(angle) * OBSIDIAN_RAM.chargeDistance,
-    start[1] + Math.cos(angle) * OBSIDIAN_RAM.chargeDistance,
-  ]);
-}
-
-function beginMechanic(motion: BossMotionState, context: BossMechanicContext, events: BossMechanicResult["events"]) {
-  const index = motion.mechanicCount % 3;
-  const mechanicCount = motion.mechanicCount + 1;
-  if (index === 0) {
-    const targetId = chooseLivingTarget(context.party, TARGETS, motion.mechanicCount);
-    const end = endpoint(motion.position, context.partyPositions[targetId]);
-    events.push({ at: context.time, message: `Destruction Rush locks onto ${memberName(context.party, targetId)}.`, tone: "danger", pulseKind: "charge", targetId });
-    return {
-      ...motion,
-      mode: "ram_charge_telegraph" as const,
-      chargeTargetId: targetId,
-      chargeStart: [...motion.position] as WorldPosition,
-      chargeEnd: end,
-      chargeHitIds: [],
-      slashLanes: [{ id: `ram-charge-${mechanicCount}`, start: [...motion.position] as WorldPosition, end, width: OBSIDIAN_RAM.chargeWidth, damage: OBSIDIAN_RAM.chargeDamage }],
-      phaseStartedAt: context.time,
-      phaseEndsAt: context.time + OBSIDIAN_RAM.chargeWarning,
-      nextMechanicAt: Number.POSITIVE_INFINITY,
-      mechanicCount,
-    };
-  }
-  if (index === 1) {
-    const activatesAt = context.time + OBSIDIAN_RAM.quakeWarning;
-    events.push({ at: context.time, message: "Ruin Quake! Leave the destruction circle.", tone: "danger", pulseKind: "boss" });
-    return {
-      ...motion,
-      mode: "ram_quake" as const,
-      phaseStartedAt: context.time,
-      phaseEndsAt: activatesAt + 0.25,
-      nextMechanicAt: Number.POSITIVE_INFINITY,
-      mechanicCount,
-      hazards: [...motion.hazards, {
-        id: `ram-quake-${mechanicCount}`,
-        kind: "quake" as const,
-        center: [...motion.position] as WorldPosition,
-        radius: OBSIDIAN_RAM.quakeRadius,
-        activatesAt,
-        expiresAt: activatesAt + 0.3,
-        damage: OBSIDIAN_RAM.quakeDamage,
-        nextDamageAt: {},
-        resolved: false,
-        hitIds: [],
-      }],
-    };
-  }
-  const targetId = chooseLivingTarget(context.party, TARGETS, motion.mechanicCount);
-  const aimed = angleTo(motion.position, context.partyPositions[targetId]);
-  events.push({ at: context.time, message: "Destruction Pulse! Step between the radial beams.", tone: "danger", pulseKind: "slash", targetId });
-  return {
-    ...motion,
-    mode: "ram_shatter" as const,
-    phaseStartedAt: context.time,
-    phaseEndsAt: context.time + OBSIDIAN_RAM.shatterWarning,
-    nextMechanicAt: Number.POSITIVE_INFINITY,
-    mechanicCount,
-    mechanicHitIds: [],
-    slashLanes: [0, Math.PI / 3, -Math.PI / 3].map((offset, laneIndex) => laneAt(motion.position, aimed + offset, `ram-shatter-${mechanicCount}-${laneIndex}`)),
-  };
-}
-
-function resolveShatter(motion: BossMotionState, context: BossMechanicContext, events: BossMechanicResult["events"]) {
-  const hitIds: MemberId[] = [];
-  const party = context.party.map((member) => {
-    const lane = motion.slashLanes.find((entry) => pointToSegmentDistance(context.partyPositions[member.id], entry.start, entry.end) <= entry.width * 0.5);
-    if (member.hp <= 0 || !lane) return member;
-    hitIds.push(member.id);
-    events.push({ at: context.time, message: `${member.name} is struck by Destruction Pulse.`, tone: "danger", pulseKind: "slash", targetId: member.id });
-    return context.damageMember(member, lane.damage, context.partyPositions[member.id], context.time);
-  });
-  return { party, hitIds };
-}
-
-export function advanceObsidianRamMechanics(context: BossMechanicContext): BossMechanicResult {
-  const boss = { ...context.boss };
-  let motion = cloneMotion(context.motion);
-  const events: BossMechanicResult["events"] = [];
-  let party = context.party;
-
-  if (motion.mode === "holding") {
-    returnBossToArenaCenter(motion, context.delta, 1.8);
-    if (context.time >= motion.nextMechanicAt) motion = beginMechanic(motion, { ...context, party }, events);
-  } else if (motion.mode === "ram_charge_telegraph" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "ram_charging", phaseStartedAt: context.time, phaseEndsAt: context.time + distance(motion.position, motion.chargeEnd) / OBSIDIAN_RAM.chargeSpeed };
-    events.push({ at: context.time, message: "Destruction Rush! Clear the lane.", tone: "danger", pulseKind: "charge" });
-  } else if (motion.mode === "ram_charging") {
-    const previous = [...motion.position] as WorldPosition;
-    motion.position = moveToward(motion.position, motion.chargeEnd, OBSIDIAN_RAM.chargeSpeed * context.delta);
-    party = party.map((member) => {
-      if (member.hp <= 0 || motion.chargeHitIds.includes(member.id) || pointToSegmentDistance(context.partyPositions[member.id], previous, motion.position) > OBSIDIAN_RAM.chargeWidth * 0.5) return member;
-      motion.chargeHitIds.push(member.id);
-      return { ...context.damageMember(member, OBSIDIAN_RAM.chargeDamage, context.partyPositions[member.id], context.time), knockedUntil: context.time + 0.55 };
-    });
-    if (distance(motion.position, motion.chargeEnd) < 0.08 || context.time >= motion.phaseEndsAt) motion = { ...motion, position: [...motion.chargeEnd], mode: "ram_recover", phaseEndsAt: context.time + OBSIDIAN_RAM.recoverDuration };
-  } else if (motion.mode === "ram_shatter" && context.time >= motion.phaseEndsAt) {
-    const resolved = resolveShatter(motion, { ...context, party }, events);
-    party = resolved.party;
-    motion = { ...motion, mode: "ram_recover", mechanicHitIds: resolved.hitIds, phaseEndsAt: context.time + OBSIDIAN_RAM.recoverDuration };
-  } else if (motion.mode === "ram_quake" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "ram_recover", phaseEndsAt: context.time + OBSIDIAN_RAM.recoverDuration };
-  } else if (motion.mode === "ram_recover" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "holding", phaseEndsAt: 0, nextMechanicAt: context.time + OBSIDIAN_RAM.repeatDelay, slashLanes: [], chargeHitIds: [], mechanicHitIds: [] };
-  }
-
-  party = resolveCircleHazards(motion, party, context.partyPositions, context.time, context.damageMember, events);
-  applyMelee(boss, motion, party, context.partyPositions, context.time, 2.2, 15, context.damageMember);
-  return { boss, motion, party, events };
-}
-
-export function upcomingObsidianRamMechanic(boss: BossState, motion: BossMotionState, time: number): UpcomingMechanic {
-  if (motion.mode === "ram_charge_telegraph" || motion.mode === "ram_charging") return { name: "Destruction Rush — clear lane", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: OBSIDIAN_RAM.chargeWarning, urgent: true };
-  if (motion.mode === "ram_quake") return { name: "Ruin Quake — move out", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: OBSIDIAN_RAM.quakeWarning, urgent: true };
-  if (motion.mode === "ram_shatter") return { name: "Destruction Pulse — find gap", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: OBSIDIAN_RAM.shatterWarning, urgent: true };
-  if (motion.mode === "ram_recover") return { name: `${boss.name} exposed`, remaining: Math.max(0, motion.phaseEndsAt - time), cycle: OBSIDIAN_RAM.recoverDuration, urgent: false };
-  const names = ["Destruction Rush", "Ruin Quake", "Destruction Pulse"];
-  const remaining = Math.max(0, motion.nextMechanicAt - time);
-  return { name: names[motion.mechanicCount % 3], remaining, cycle: OBSIDIAN_RAM.repeatDelay + OBSIDIAN_RAM.chargeWarning, urgent: remaining < 2.5 };
-}

src/game/bosses/ricochet.ts

@@ -1,114 +0,0 @@
-import { clampToArena } from "../arena";
-import { BOSS_DEFINITIONS } from "../bossCatalog";
-import { angleTo, distance, moveToward, pointToSegmentDistance } from "../geometry";
-import type { BossId, BossMotionState, BossState, CircleHazard, MemberId, SlashLane, WorldPosition } from "../types";
-import { applyMelee, chooseLivingTarget, cloneMotion, createBaseMotion, memberName, resolveCircleHazards, returnBossToArenaCenter } from "./shared";
-import type { BossMechanicContext, BossMechanicResult, UpcomingMechanic } from "./types";
-
-export const CINDERBACK = {
-  firstAt: 5,
-  repeatDelay: 3.6,
-  curlWarning: 1.25,
-  speed: 12.5,
-  distance: 13,
-  laneWidth: 2.25,
-  rushDamage: 22,
-  slamWarning: 1.3,
-  slamRadius: 3.1,
-  slamDamage: 29,
-  lavaRadius: 1.5,
-  lavaDamage: 5,
-  lavaDuration: 4.5,
-  recoverDuration: 0.75,
-} as const;
-
-const TARGETS: readonly MemberId[] = ["orin", "nia", "aelia", "vale", "brann"];
-
-export function createCinderbackState(bossId: BossId = "emberfox"): BossState {
-  const definition = BOSS_DEFINITIONS[bossId];
-  return { id: definition.id, name: definition.name, maxHp: definition.maxHp, hp: definition.maxHp, nextMeleeAt: 2.4, nextNovaAt: Infinity, nextBrandAt: Infinity, brandCount: 0 };
-}
-
-export function createCinderbackMotion(bossId: BossId = "emberfox"): BossMotionState {
-  return { ...createBaseMotion(bossId), position: [0, -6.4], nextMechanicAt: CINDERBACK.firstAt };
-}
-
-function rushEnd(start: WorldPosition, target: WorldPosition) {
-  const angle = angleTo(start, target);
-  return clampToArena([start[0] + Math.sin(angle) * CINDERBACK.distance, start[1] + Math.cos(angle) * CINDERBACK.distance] as WorldPosition);
-}
-
-function rushLane(id: string, start: WorldPosition, end: WorldPosition): SlashLane {
-  return { id, start: [...start], end: [...end], width: CINDERBACK.laneWidth, damage: CINDERBACK.rushDamage };
-}
-
-function lavaPool(id: string, center: WorldPosition, at: number): CircleHazard {
-  return { id, kind: "lava_pool", center: [...center], radius: CINDERBACK.lavaRadius, activatesAt: at, expiresAt: at + CINDERBACK.lavaDuration, damage: CINDERBACK.lavaDamage, tickInterval: 0.8, nextDamageAt: {}, resolved: false, hitIds: [] };
-}
-
-export function advanceCinderbackMechanics(context: BossMechanicContext): BossMechanicResult {
-  const boss = { ...context.boss };
-  let motion = cloneMotion(context.motion);
-  const events: BossMechanicResult["events"] = [];
-  let party = context.party;
-
-  if (motion.mode === "holding") {
-    returnBossToArenaCenter(motion, context.delta, 2);
-    if (context.time >= motion.nextMechanicAt) {
-      const count = motion.mechanicCount + 1;
-      if (motion.mechanicCount % 2 === 0) {
-        const targetId = chooseLivingTarget(party, TARGETS, motion.mechanicCount);
-        const end = rushEnd(motion.position, context.partyPositions[targetId]);
-        motion = { ...motion, mode: "cinderback_curl", chargeTargetId: targetId, chargeStart: [...motion.position], chargeEnd: end, chargeHitIds: [], chargeCount: 0, phaseStartedAt: context.time, phaseEndsAt: context.time + CINDERBACK.curlWarning, nextMechanicAt: Infinity, mechanicCount: count, slashLanes: [rushLane(`ricochet-${count}-0`, motion.position, end)] };
-        events.push({ at: context.time, message: `${boss.name} dives toward ${memberName(party, targetId)}. Two rebounds incoming.`, tone: "danger", pulseKind: "charge", targetId });
-      } else {
-        const activatesAt = context.time + CINDERBACK.slamWarning;
-        const pools = [0, 1, 2].map((index) => {
-          const angle = (index / 3) * Math.PI * 2;
-          return lavaPool(`slam-lava-${count}-${index}`, clampToArena([motion.position[0] + Math.sin(angle) * 3.7, motion.position[1] + Math.cos(angle) * 3.7]), activatesAt);
-        });
-        motion = { ...motion, mode: "cinderback_slam", phaseStartedAt: context.time, phaseEndsAt: activatesAt + 0.25, nextMechanicAt: Infinity, mechanicCount: count, hazards: [...motion.hazards, { id: `armor-slam-${count}`, kind: "quake", center: [...motion.position], radius: CINDERBACK.slamRadius, activatesAt, expiresAt: activatesAt + 0.3, damage: CINDERBACK.slamDamage, nextDamageAt: {}, resolved: false, hitIds: [] }, ...pools] };
-        events.push({ at: context.time, message: "Meteor slam! Clear the spreading flame.", tone: "danger", pulseKind: "boss" });
-      }
-    }
-  } else if (motion.mode === "cinderback_curl" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "cinderback_ricochet", phaseStartedAt: context.time, phaseEndsAt: context.time + distance(motion.position, motion.chargeEnd) / CINDERBACK.speed };
-  } else if (motion.mode === "cinderback_ricochet") {
-    const previous = [...motion.position] as WorldPosition;
-    motion.position = moveToward(motion.position, motion.chargeEnd, CINDERBACK.speed * context.delta);
-    party = party.map((member) => {
-      if (member.hp <= 0 || motion.chargeHitIds.includes(member.id) || pointToSegmentDistance(context.partyPositions[member.id], previous, motion.position) > CINDERBACK.laneWidth * 0.5) return member;
-      motion.chargeHitIds.push(member.id);
-      return { ...context.damageMember(member, CINDERBACK.rushDamage, context.partyPositions[member.id], context.time), knockedUntil: context.time + 0.4 };
-    });
-    if (distance(motion.position, motion.chargeEnd) < 0.08 || context.time >= motion.phaseEndsAt) {
-      motion.hazards.push(lavaPool(`ricochet-lava-${motion.mechanicCount}-${motion.chargeCount}`, motion.chargeEnd, context.time));
-      if (motion.chargeCount === 0) {
-        const targetId = chooseLivingTarget(party, TARGETS, motion.mechanicCount + 2);
-        const start = [...motion.chargeEnd] as WorldPosition;
-        const end = rushEnd(start, context.partyPositions[targetId]);
-        motion = { ...motion, position: start, chargeStart: start, chargeEnd: end, chargeTargetId: targetId, chargeHitIds: [], chargeCount: 1, phaseEndsAt: context.time + distance(start, end) / CINDERBACK.speed, slashLanes: [rushLane(`ricochet-${motion.mechanicCount}-1`, start, end)] };
-        events.push({ at: context.time, message: `Ricochet rush rebounds toward ${memberName(party, targetId)}!`, tone: "danger", pulseKind: "charge", targetId });
-      } else {
-        motion = { ...motion, position: [...motion.chargeEnd], mode: "cinderback_recover", phaseEndsAt: context.time + CINDERBACK.recoverDuration };
-      }
-    }
-  } else if (motion.mode === "cinderback_slam" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "cinderback_recover", phaseEndsAt: context.time + CINDERBACK.recoverDuration };
-  } else if (motion.mode === "cinderback_recover" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "holding", nextMechanicAt: context.time + CINDERBACK.repeatDelay, phaseEndsAt: 0, slashLanes: [], chargeHitIds: [] };
-  }
-
-  party = resolveCircleHazards(motion, party, context.partyPositions, context.time, context.damageMember, events);
-  applyMelee(boss, motion, party, context.partyPositions, context.time, 2.1, 14, context.damageMember);
-  return { boss, motion, party, events };
-}
-
-export function upcomingCinderbackMechanic(boss: BossState, motion: BossMotionState, time: number): UpcomingMechanic {
-  if (motion.mode === "cinderback_curl") return { name: "Ricochet Rush — clear lane", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: CINDERBACK.curlWarning, urgent: true };
-  if (motion.mode === "cinderback_ricochet") return { name: motion.chargeCount === 0 ? "First rebound" : "Second rebound", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: 1.2, urgent: true };
-  if (motion.mode === "cinderback_slam") return { name: "Meteor Slam — move out", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: CINDERBACK.slamWarning, urgent: true };
-  if (motion.mode === "cinderback_recover") return { name: `${boss.name} exposed`, remaining: Math.max(0, motion.phaseEndsAt - time), cycle: CINDERBACK.recoverDuration, urgent: false };
-  const remaining = Math.max(0, motion.nextMechanicAt - time);
-  return { name: motion.mechanicCount % 2 === 0 ? "Ricochet Rush" : "Meteor Slam", remaining, cycle: CINDERBACK.repeatDelay + CINDERBACK.curlWarning, urgent: remaining < 2.5 };
-}

src/game/bosses/sandglassScorpion.ts

@@ -1,103 +0,0 @@
-import { clampToArena } from "../arena";
-import { BOSS_DEFINITIONS } from "../bossCatalog";
-import { angleTo, distance, moveToward, pointToSegmentDistance } from "../geometry";
-import type { BossMotionState, BossState, CircleHazard, MemberId, SlashLane, WorldPosition } from "../types";
-import { applyMelee, chooseLivingTarget, cloneMotion, createBaseMotion, memberName, resolveCircleHazards, returnBossToArenaCenter } from "./shared";
-import type { BossMechanicContext, BossMechanicResult, UpcomingMechanic } from "./types";
-
-export const SANDGLASS = {
-  firstAt: 5.4,
-  repeatDelay: 3.8,
-  burrowWarning: 1.3,
-  burrowSpeed: 10.8,
-  burrowDistance: 13,
-  burrowWidth: 2,
-  burrowDamage: 25,
-  eruptionWarning: 1.55,
-  eruptionRadius: 1.75,
-  eruptionDamage: 27,
-  hourglassRadius: 2.55,
-  hourglassDamage: 6,
-  hourglassDuration: 3.6,
-  recoverDuration: 0.7,
-} as const;
-
-const TARGETS: readonly MemberId[] = ["aelia", "nia", "orin", "vale", "brann"];
-const ERUPTION_TARGETS: readonly MemberId[][] = [["aelia", "nia", "orin"], ["brann", "vale", "aelia"], ["nia", "orin", "vale"]];
-
-export function createSandglassState(): BossState {
-  const definition = BOSS_DEFINITIONS["sandglass-scorpion"];
-  return { id: definition.id, name: definition.name, maxHp: definition.maxHp, hp: definition.maxHp, nextMeleeAt: 2.2, nextNovaAt: Infinity, nextBrandAt: Infinity, brandCount: 0 };
-}
-
-export function createSandglassMotion(): BossMotionState {
-  return { ...createBaseMotion("sandglass-scorpion"), position: [0, -6.5], nextMechanicAt: SANDGLASS.firstAt };
-}
-
-function burrowEnd(start: WorldPosition, target: WorldPosition) {
-  const angle = angleTo(start, target);
-  return clampToArena([start[0] + Math.sin(angle) * SANDGLASS.burrowDistance, start[1] + Math.cos(angle) * SANDGLASS.burrowDistance] as WorldPosition);
-}
-
-function eruption(id: string, center: WorldPosition, activatesAt: number): CircleHazard {
-  return { id, kind: "stinger_eruption", center: [...center], radius: SANDGLASS.eruptionRadius, activatesAt, expiresAt: activatesAt + 0.32, damage: SANDGLASS.eruptionDamage, nextDamageAt: {}, resolved: false, hitIds: [] };
-}
-
-export function advanceSandglassMechanics(context: BossMechanicContext): BossMechanicResult {
-  const boss = { ...context.boss };
-  let motion = cloneMotion(context.motion);
-  const events: BossMechanicResult["events"] = [];
-  let party = context.party;
-
-  if (motion.mode === "holding") {
-    returnBossToArenaCenter(motion, context.delta, 2.1);
-    if (context.time >= motion.nextMechanicAt) {
-      const count = motion.mechanicCount + 1;
-      if (motion.mechanicCount % 2 === 0) {
-        const targetId = chooseLivingTarget(party, TARGETS, motion.mechanicCount);
-        const end = burrowEnd(motion.position, context.partyPositions[targetId]);
-        const lane: SlashLane = { id: `burrow-${count}`, start: [...motion.position], end, width: SANDGLASS.burrowWidth, damage: SANDGLASS.burrowDamage };
-        motion = { ...motion, mode: "sandglass_burrow_telegraph", chargeTargetId: targetId, chargeStart: [...motion.position], chargeEnd: end, chargeHitIds: [], phaseStartedAt: context.time, phaseEndsAt: context.time + SANDGLASS.burrowWarning, nextMechanicAt: Infinity, mechanicCount: count, slashLanes: [lane] };
-        events.push({ at: context.time, message: `Burrow Rush tracks ${memberName(party, targetId)}. Cross the sand trail.`, tone: "danger", pulseKind: "charge", targetId });
-      } else {
-        const activatesAt = context.time + SANDGLASS.eruptionWarning;
-        const targets = ERUPTION_TARGETS[Math.floor(motion.mechanicCount / 2) % ERUPTION_TARGETS.length];
-        motion = { ...motion, mode: "sandglass_eruption", phaseStartedAt: context.time, phaseEndsAt: activatesAt + 0.3, nextMechanicAt: Infinity, mechanicCount: count, hazards: [...motion.hazards, ...targets.map((targetId, index) => eruption(`stinger-${count}-${index}`, context.partyPositions[targetId], activatesAt))] };
-        events.push({ at: context.time, message: "Stinger Eruption! Leave the timed sand circles.", tone: "danger", pulseKind: "skyfall" });
-      }
-    }
-  } else if (motion.mode === "sandglass_burrow_telegraph" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "sandglass_burrowing", phaseStartedAt: context.time, phaseEndsAt: context.time + distance(motion.position, motion.chargeEnd) / SANDGLASS.burrowSpeed };
-  } else if (motion.mode === "sandglass_burrowing") {
-    const previous = [...motion.position] as WorldPosition;
-    motion.position = moveToward(motion.position, motion.chargeEnd, SANDGLASS.burrowSpeed * context.delta);
-    party = party.map((member) => {
-      if (member.hp <= 0 || motion.chargeHitIds.includes(member.id) || pointToSegmentDistance(context.partyPositions[member.id], previous, motion.position) > SANDGLASS.burrowWidth * 0.5) return member;
-      motion.chargeHitIds.push(member.id);
-      return { ...context.damageMember(member, SANDGLASS.burrowDamage, context.partyPositions[member.id], context.time), knockedUntil: context.time + 0.35 };
-    });
-    if (distance(motion.position, motion.chargeEnd) < 0.08 || context.time >= motion.phaseEndsAt) motion = { ...motion, position: [...motion.chargeEnd], mode: "sandglass_recover", phaseEndsAt: context.time + SANDGLASS.recoverDuration };
-  } else if (motion.mode === "sandglass_eruption" && context.time >= motion.phaseEndsAt) {
-    const center = clampToArena([motion.position[0], motion.position[1] + 3]);
-    const activatesAt = context.time + 0.9;
-    motion = { ...motion, mode: "sandglass_hourglass", phaseStartedAt: context.time, phaseEndsAt: activatesAt + SANDGLASS.hourglassDuration, hazards: [...motion.hazards, { id: `hourglass-${motion.mechanicCount}`, kind: "hourglass", center, radius: SANDGLASS.hourglassRadius, activatesAt, expiresAt: activatesAt + SANDGLASS.hourglassDuration, damage: SANDGLASS.hourglassDamage, tickInterval: 0.75, nextDamageAt: {}, resolved: false, hitIds: [] }] };
-    events.push({ at: context.time, message: "Hourglass zone turns active. Keep moving.", tone: "danger", pulseKind: "skyfall" });
-  } else if (motion.mode === "sandglass_hourglass" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "sandglass_recover", phaseEndsAt: context.time + SANDGLASS.recoverDuration };
-  } else if (motion.mode === "sandglass_recover" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "holding", phaseEndsAt: 0, nextMechanicAt: context.time + SANDGLASS.repeatDelay, slashLanes: [], chargeHitIds: [] };
-  }
-
-  party = resolveCircleHazards(motion, party, context.partyPositions, context.time, context.damageMember, events);
-  applyMelee(boss, motion, party, context.partyPositions, context.time, 2.15, 14, context.damageMember);
-  return { boss, motion, party, events };
-}
-
-export function upcomingSandglassMechanic(_boss: BossState, motion: BossMotionState, time: number): UpcomingMechanic {
-  if (motion.mode === "sandglass_burrow_telegraph" || motion.mode === "sandglass_burrowing") return { name: "Burrow Rush — clear trail", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: SANDGLASS.burrowWarning, urgent: true };
-  if (motion.mode === "sandglass_eruption") return { name: "Stinger Eruption — move", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: SANDGLASS.eruptionWarning, urgent: true };
-  if (motion.mode === "sandglass_hourglass") return { name: "Hourglass zone active", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: SANDGLASS.hourglassDuration, urgent: true };
-  if (motion.mode === "sandglass_recover") return { name: "Chronarch exposed", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: SANDGLASS.recoverDuration, urgent: false };
-  const remaining = Math.max(0, motion.nextMechanicAt - time);
-  return { name: motion.mechanicCount % 2 === 0 ? "Burrow Rush" : "Hourglass Eruption", remaining, cycle: SANDGLASS.repeatDelay + SANDGLASS.burrowWarning, urgent: remaining < 2.5 };
-}

src/game/bosses/shared.ts

@@ -39,19 +39,6 @@ export function returnBossToArenaCenter(motion: BossMotionState, delta: number,
   return false;
 }
 
-export function createBossStateFor(bossId: BossId, name: string, maxHp: number, nextMeleeAt: number): BossState {
-  return {
-    id: bossId,
-    name,
-    maxHp,
-    hp: maxHp,
-    nextMeleeAt,
-    nextNovaAt: Number.POSITIVE_INFINITY,
-    nextBrandAt: Number.POSITIVE_INFINITY,
-    brandCount: 0,
-  };
-}
-
 export function createCircleHazard({
   id,
   kind,
@@ -92,6 +79,7 @@ export function createCircleHazard({
 export function createBaseMotion(bossId: BossId): BossMotionState {
   return {
     bossId,
+    activeMechanicId: null,
     formationOffsetX: 0,
     mode: "holding",
     position: [0, -8.2],
@@ -100,12 +88,9 @@ export function createBaseMotion(bossId: BossId): BossMotionState {
     chargeTargetId: "nia",
     chargeHitIds: [],
     phaseEndsAt: 0,
-    nextChargeAt: Number.POSITIVE_INFINITY,
     chargeCount: 0,
-    chargesSincePounce: 0,
     pounceTargetId: "aelia",
     pounceCenter: [0, 4.5],
-    pounceCount: 0,
     nextMechanicAt: Number.POSITIVE_INFINITY,
     mechanicCount: 0,
     phaseStartedAt: 0,
@@ -118,7 +103,6 @@ export function createBaseMotion(bossId: BossId): BossMotionState {
     breathEndAngle: 0,
     hazards: [],
     slashLanes: [],
-    nextPoolMechanicAt: 15,
     poolMechanicCount: 0,
     poolTelegraphs: [],
   };

src/game/bosses/skySweeper.ts

@@ -1,160 +0,0 @@
-import { BOSS_DEFINITIONS } from "../bossCatalog";
-import { angleTo, pointInCone } from "../geometry";
-import type { BossId, BossMotionState, BossState, MemberId } from "../types";
-import { applyMelee, cloneMotion, createBaseMotion, resolveCircleHazards, returnBossToArenaCenter } from "./shared";
-import type { BossMechanicContext, BossMechanicResult, UpcomingMechanic } from "./types";
-
-export const SKY_SWEEPER_BREATH = {
-  firstAt: 6,
-  telegraphDuration: 2,
-  sweepDuration: 3.2,
-  range: 10.5,
-  halfAngle: Math.PI / 7,
-  sweepArc: Math.PI * 0.95,
-  tickDamage: 9,
-  tickInterval: 0.45,
-} as const;
-
-export const SKY_SWEEPER_SKYFALL = {
-  warning: 2,
-  stagger: 0.9,
-  radius: 1.8,
-  damage: 30,
-  fireDuration: 5,
-} as const;
-
-const SKYFALL_TARGETS: readonly MemberId[][] = [
-  ["nia", "orin", "vale"],
-  ["aelia", "brann", "orin"],
-  ["vale", "nia", "aelia"],
-];
-
-export function createSkySweeperState(bossId: BossId): BossState {
-  const definition = BOSS_DEFINITIONS[bossId];
-  return {
-    id: bossId,
-    name: definition.name,
-    maxHp: definition.maxHp,
-    hp: definition.maxHp,
-    nextMeleeAt: 2.5,
-    nextNovaAt: Number.POSITIVE_INFINITY,
-    nextBrandAt: Number.POSITIVE_INFINITY,
-    brandCount: 0,
-  };
-}
-
-export function createSkySweeperMotion(bossId: BossId): BossMotionState {
-  return { ...createBaseMotion(bossId), position: [0, -2.8], nextMechanicAt: SKY_SWEEPER_BREATH.firstAt };
-}
-
-export function advanceSkySweeperMechanics(context: BossMechanicContext): BossMechanicResult {
-  const boss = { ...context.boss };
-  let motion = cloneMotion(context.motion);
-  let party = context.party;
-  const events: BossMechanicResult["events"] = [];
-
-  party = resolveCircleHazards(motion, party, context.partyPositions, context.time, context.damageMember, events);
-
-  if (motion.mode === "holding") {
-    returnBossToArenaCenter(motion, context.delta, 1.9);
-  }
-
-  if (motion.mode === "holding" && context.time >= motion.nextMechanicAt) {
-    if (motion.mechanicCount % 2 === 0) {
-      const aimedAngle = angleTo(motion.position, context.partyPositions.brann);
-      const direction = motion.mechanicCount % 4 === 0 ? 1 : -1;
-      const startAngle = aimedAngle - direction * SKY_SWEEPER_BREATH.sweepArc * 0.5;
-      motion = {
-        ...motion,
-        mode: "breath_telegraph",
-        phaseStartedAt: context.time,
-        phaseEndsAt: context.time + SKY_SWEEPER_BREATH.telegraphDuration,
-        nextMechanicAt: Number.POSITIVE_INFINITY,
-        mechanicCount: motion.mechanicCount + 1,
-        breathAngle: startAngle,
-        breathStartAngle: startAngle,
-        breathEndAngle: startAngle + direction * SKY_SWEEPER_BREATH.sweepArc,
-        mechanicHitIds: [],
-        mechanicNextDamageAt: {},
-      };
-      events.push({ at: context.time, message: `${boss.name} gathers a sweeping storm breath. Rotate behind it!`, tone: "danger", pulseKind: "breath" });
-    } else {
-      const set = SKYFALL_TARGETS[Math.floor(motion.mechanicCount / 2) % SKYFALL_TARGETS.length];
-      const hazards = set.map((memberId, index) => {
-        const activatesAt = context.time + SKY_SWEEPER_SKYFALL.warning + index * SKY_SWEEPER_SKYFALL.stagger;
-        return {
-          id: `skyfall-${motion.mechanicCount}-${index}`,
-          kind: "skyfall" as const,
-          center: [context.partyPositions[memberId][0], context.partyPositions[memberId][1]] as [number, number],
-          radius: SKY_SWEEPER_SKYFALL.radius,
-          activatesAt,
-          expiresAt: activatesAt + SKY_SWEEPER_SKYFALL.fireDuration,
-          damage: SKY_SWEEPER_SKYFALL.damage,
-          nextDamageAt: {},
-          resolved: false,
-          hitIds: [],
-        };
-      });
-      motion = {
-        ...motion,
-        mode: "skyfall",
-        phaseStartedAt: context.time,
-        phaseEndsAt: hazards[hazards.length - 1].activatesAt + 0.5,
-        nextMechanicAt: Number.POSITIVE_INFINITY,
-        mechanicCount: motion.mechanicCount + 1,
-        hazards: [...motion.hazards, ...hazards],
-      };
-      events.push({ at: context.time, message: `${boss.name} takes flight. Three skyfalls incoming!`, tone: "danger", pulseKind: "skyfall", targetId: set[0] });
-    }
-  } else if (motion.mode === "breath_telegraph" && context.time >= motion.phaseEndsAt) {
-    motion = {
-      ...motion,
-      mode: "breath_sweeping",
-      phaseStartedAt: context.time,
-      phaseEndsAt: context.time + SKY_SWEEPER_BREATH.sweepDuration,
-      breathAngle: motion.breathStartAngle,
-    };
-    events.push({ at: context.time, message: "Storm breath crosses the arena!", tone: "danger", pulseKind: "breath" });
-  } else if (motion.mode === "breath_sweeping") {
-    const progress = Math.max(0, Math.min(1, (context.time - motion.phaseStartedAt) / SKY_SWEEPER_BREATH.sweepDuration));
-    motion.breathAngle = motion.breathStartAngle + (motion.breathEndAngle - motion.breathStartAngle) * progress;
-    party = party.map((member) => {
-      if (member.hp <= 0) return member;
-      const exposed = pointInCone(context.partyPositions[member.id], motion.position, motion.breathAngle, SKY_SWEEPER_BREATH.halfAngle, SKY_SWEEPER_BREATH.range);
-      if (!exposed) {
-        motion.mechanicNextDamageAt[member.id] = context.time;
-        return member;
-      }
-      let next = member;
-      let tickAt = motion.mechanicNextDamageAt[member.id] ?? motion.phaseStartedAt;
-      while (tickAt <= context.time + 0.001) {
-        next = context.damageMember(next, SKY_SWEEPER_BREATH.tickDamage, context.partyPositions[member.id], tickAt);
-        tickAt += SKY_SWEEPER_BREATH.tickInterval;
-      }
-      motion.mechanicNextDamageAt[member.id] = tickAt;
-      if (!motion.mechanicHitIds.includes(member.id)) {
-        motion.mechanicHitIds.push(member.id);
-        events.push({ at: context.time, message: `${member.name} is struck by storm breath.`, tone: "danger", pulseKind: "breath", targetId: member.id });
-      }
-      return next;
-    });
-    if (context.time >= motion.phaseEndsAt) {
-      motion = { ...motion, mode: "holding", phaseEndsAt: 0, nextMechanicAt: context.time + 4 };
-    }
-  } else if (motion.mode === "skyfall" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "holding", phaseEndsAt: 0, nextMechanicAt: context.time + 4 };
-  }
-
-  applyMelee(boss, motion, party, context.partyPositions, context.time, 2.6, 17, context.damageMember);
-  return { boss, motion, party, events };
-}
-
-export function upcomingSkySweeperMechanic(boss: BossState, motion: BossMotionState, time: number): UpcomingMechanic {
-  void boss;
-  if (motion.mode === "breath_telegraph") return { name: "Storm Breath", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: SKY_SWEEPER_BREATH.telegraphDuration, urgent: true };
-  if (motion.mode === "breath_sweeping") return { name: "Rotate behind", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: SKY_SWEEPER_BREATH.sweepDuration, urgent: true };
-  if (motion.mode === "skyfall") return { name: "Stormfall", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: SKY_SWEEPER_SKYFALL.warning + SKY_SWEEPER_SKYFALL.stagger * 2, urgent: true };
-  const nextIsBreath = motion.mechanicCount % 2 === 0;
-  const remaining = Math.max(0, motion.nextMechanicAt - time);
-  return { name: nextIsBreath ? "Storm Breath" : "Stormfall", remaining, cycle: 8, urgent: remaining < 2.5 };
-}

src/game/bosses/types.ts

@@ -22,8 +22,6 @@ export interface BossMechanicContext {
   partyPositions: Record<MemberId, WorldPosition>;
   time: number;
   delta: number;
-  /** Shared pool mechanics are reserved for solo encounters to avoid unreadable overlap in multi-boss fights. */
-  allowPooledMechanics?: boolean;
   damageMember: (member: PartyMember, amount: number, position: WorldPosition, at: number, kind?: "direct" | "hazard") => PartyMember;
 }
 

src/game/bosses/vexa.ts

@@ -1,160 +0,0 @@
-import { BOSS_DEFINITIONS } from "../bossCatalog";
-import { distance } from "../geometry";
-import type { BossId, BossMotionState, BossState, MemberId } from "../types";
-import { applyMelee, cloneMotion, createBaseMotion, memberName, resolveCircleHazards, returnBossToArenaCenter } from "./shared";
-import type { BossMechanicContext, BossMechanicResult, UpcomingMechanic } from "./types";
-
-export const VEXA_TETHER = {
-  firstAt: 6,
-  duration: 4.5,
-  breakDistance: 6.8,
-  failureDamage: 24,
-  rootDuration: 1.4,
-} as const;
-
-export const VEXA_VENOM = {
-  duration: 10,
-  tickDamage: 5,
-  castDuration: 2.5,
-  poolRadius: 2,
-  poolDuration: 7,
-  poolDamage: 14,
-} as const;
-
-const TETHER_PAIRS: readonly (readonly [MemberId, MemberId])[] = [
-  ["brann", "vale"],
-  ["nia", "orin"],
-  ["aelia", "nia"],
-];
-const VENOM_TARGETS: readonly MemberId[][] = [
-  ["nia", "vale"],
-  ["orin", "brann"],
-  ["aelia", "vale"],
-];
-
-export function createVexaState(bossId: BossId = "broodfang-spider"): BossState {
-  const definition = BOSS_DEFINITIONS[bossId];
-  return {
-    id: bossId,
-    name: definition.name,
-    maxHp: definition.maxHp,
-    hp: definition.maxHp,
-    nextMeleeAt: 2.5,
-    nextNovaAt: Number.POSITIVE_INFINITY,
-    nextBrandAt: Number.POSITIVE_INFINITY,
-    brandCount: 0,
-  };
-}
-
-export function createVexaMotion(bossId: BossId = "broodfang-spider"): BossMotionState {
-  return { ...createBaseMotion(bossId), position: [0, -7.4], nextMechanicAt: VEXA_TETHER.firstAt };
-}
-
-export function advanceVexaMechanics(context: BossMechanicContext): BossMechanicResult {
-  const boss = { ...context.boss };
-  let motion = cloneMotion(context.motion);
-  let party = context.party;
-  const events: BossMechanicResult["events"] = [];
-
-  party = resolveCircleHazards(motion, party, context.partyPositions, context.time, context.damageMember, events);
-
-  if (motion.mode === "holding") {
-    returnBossToArenaCenter(motion, context.delta, 2.1);
-  }
-
-  if (motion.mode === "holding" && context.time >= motion.nextMechanicAt) {
-    if (motion.mechanicCount % 2 === 0) {
-      const pair = TETHER_PAIRS[Math.floor(motion.mechanicCount / 2) % TETHER_PAIRS.length];
-      const livingPair = pair.filter((memberId) => party.some((member) => member.id === memberId && member.hp > 0));
-      if (livingPair.length === 2) {
-        motion = {
-          ...motion,
-          mode: "tethering",
-          phaseStartedAt: context.time,
-          phaseEndsAt: context.time + VEXA_TETHER.duration,
-          nextMechanicAt: Number.POSITIVE_INFINITY,
-          tetherIds: [...livingPair],
-          tetherBreakDistance: VEXA_TETHER.breakDistance,
-          mechanicCount: motion.mechanicCount + 1,
-        };
-        events.push({ at: context.time, message: `${boss.name} binds ${memberName(party, livingPair[0])} to ${memberName(party, livingPair[1])}. Spread apart!`, tone: "danger", pulseKind: "tether", targetId: livingPair[0] });
-      }
-    } else {
-      const targetSet = VENOM_TARGETS[Math.floor(motion.mechanicCount / 2) % VENOM_TARGETS.length];
-      const targets = targetSet.filter((memberId) => party.some((member) => member.id === memberId && member.hp > 0));
-      party = party.map((member) => targets.includes(member.id)
-        ? {
-            ...member,
-            debuffs: [...member.debuffs, {
-              id: `widow-venom-${motion.mechanicCount}-${member.id}`,
-              name: "Widow Venom",
-              expiresAt: context.time + VEXA_VENOM.duration,
-              nextTickAt: context.time + 1,
-              tickDamage: VEXA_VENOM.tickDamage,
-            }],
-          }
-        : member);
-      motion = {
-        ...motion,
-        mode: "venom_cast",
-        phaseStartedAt: context.time,
-        phaseEndsAt: context.time + VEXA_VENOM.castDuration,
-        nextMechanicAt: Number.POSITIVE_INFINITY,
-        mechanicCount: motion.mechanicCount + 1,
-      };
-      events.push({ at: context.time, message: `${boss.name} injects Widow Venom. Move away before cleansing!`, tone: "danger", pulseKind: "venom", targetId: targets[0] });
-    }
-  } else if (motion.mode === "tethering") {
-    const [first, second] = motion.tetherIds;
-    if (!first || !second || distance(context.partyPositions[first], context.partyPositions[second]) >= motion.tetherBreakDistance) {
-      motion = { ...motion, mode: "holding", phaseEndsAt: 0, tetherIds: [], nextMechanicAt: context.time + 4 };
-      events.push({ at: context.time, message: "Binding Web snaps. Formation is free.", pulseKind: "tether" });
-    } else if (context.time >= motion.phaseEndsAt) {
-      party = party.map((member) => motion.tetherIds.includes(member.id)
-        ? {
-            ...context.damageMember(member, VEXA_TETHER.failureDamage, context.partyPositions[member.id], context.time),
-            knockedUntil: context.time + VEXA_TETHER.rootDuration,
-          }
-        : member);
-      motion = { ...motion, mode: "holding", phaseEndsAt: 0, tetherIds: [], nextMechanicAt: context.time + 4 };
-      events.push({ at: context.time, message: "Binding Web constricts and roots its targets.", tone: "danger", pulseKind: "tether" });
-    }
-  } else if (motion.mode === "venom_cast" && context.time >= motion.phaseEndsAt) {
-    motion = { ...motion, mode: "holding", phaseEndsAt: 0, nextMechanicAt: context.time + 4 };
-  }
-
-  applyMelee(boss, motion, party, context.partyPositions, context.time, 2.7, 13, context.damageMember);
-  return { boss, motion, party, events };
-}
-
-export function dropVexaVenomPool(
-  motion: BossMotionState,
-  memberId: MemberId,
-  center: [number, number],
-  time: number,
-) {
-  const next = cloneMotion(motion);
-  next.hazards.push({
-    id: `venom-pool-${memberId}-${time.toFixed(2)}`,
-    kind: "venom_pool",
-    center: [center[0], center[1]],
-    radius: VEXA_VENOM.poolRadius,
-    activatesAt: time + 0.25,
-    expiresAt: time + VEXA_VENOM.poolDuration,
-    damage: VEXA_VENOM.poolDamage,
-    tickInterval: 1,
-    nextDamageAt: {},
-    resolved: false,
-    hitIds: [],
-  });
-  return next;
-}
-
-export function upcomingVexaMechanic(boss: BossState, motion: BossMotionState, time: number): UpcomingMechanic {
-  void boss;
-  if (motion.mode === "tethering") return { name: "Break Binding Web", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: VEXA_TETHER.duration, urgent: true };
-  if (motion.mode === "venom_cast") return { name: "Move, then Purify", remaining: Math.max(0, motion.phaseEndsAt - time), cycle: VEXA_VENOM.castDuration, urgent: true };
-  const nextIsTether = motion.mechanicCount % 2 === 0;
-  const remaining = Math.max(0, motion.nextMechanicAt - time);
-  return { name: nextIsTether ? "Binding Web" : "Venom Purge", remaining, cycle: 8, urgent: remaining < 2.5 };
-}

src/game/partyBehaviors.ts

@@ -1,6 +1,5 @@
-import { BULL_CHARGE } from "./bossMechanics";
 import { clampToArena } from "./arena";
-import { SKY_SWEEPER_BREATH } from "./bosses/skySweeper";
+import { BULL_CHARGE, SKY_SWEEPER_BREATH } from "./bosses/mechanicPool";
 import { moveToward, pointOutsideCircle, pointOutsideLane, pointToSegmentDistance } from "./geometry";
 import type { BossMotionState, MemberId, PartyMember, WorldPosition } from "./types";
 
@@ -37,24 +36,11 @@ const STACK_OFFSETS: Record<AiMemberId, WorldPosition> = {
 const LANE_EVADE_MODES: readonly BossMotionState["mode"][] = [
   "mantis_line_telegraph",
   "mantis_cross_telegraph",
-  "ram_charge_telegraph",
-  "ram_charging",
-  "ram_shatter",
-  "cinderback_curl",
-  "cinderback_ricochet",
-  "sandglass_burrow_telegraph",
-  "sandglass_burrowing",
-  "crab_scuttle_telegraph",
-  "crab_scuttling",
-  "ghost_soul_cross",
-  "ghost_soul_cross_followup",
 ];
 const FORMATION_MODES: readonly BossMotionState["mode"][] = [
-  "holding", "telegraph", "tethering", "venom_cast", "skyfall", "mantis_sidestep", "mantis_recover",
-  "ram_quake", "ram_recover", "cinderback_slam", "cinderback_recover", "sandglass_eruption", "sandglass_hourglass", "sandglass_recover",
-  "crab_tidal_burst", "crab_recover", "ghost_haunting", "ghost_recover", "golem_shockwave", "golem_crownfall", "golem_recover",
+  "holding", "telegraph", "tethering", "venom_cast", "skyfall", "cinderback_slam", "sandglass_hourglass", "golem_shockwave", "golem_crownfall",
 ];
-const DASH_MODES: readonly BossMotionState["mode"][] = ["telegraph", "charging", "ram_charge_telegraph", "ram_charging", "cinderback_curl", "cinderback_ricochet", "sandglass_burrow_telegraph", "sandglass_burrowing", "crab_scuttle_telegraph", "crab_scuttling"];
+const DASH_MODES: readonly BossMotionState["mode"][] = ["telegraph", "charging"];
 
 const FORMATION_SLOTS: Record<AiMemberId, WorldPosition> = {
   // Bosses face Brann during normal uptime, making positive Z their front.

src/game/progression/infusions.test.ts

@@ -7,15 +7,20 @@ import {
   equipActiveInfusion,
   equipPassiveInfusion,
   infusionCosts,
+  PASSIVE_INFUSIONS,
   passiveInfusionUnlocked,
 } from "./infusions";
 import { bossGroupDrop, groupDrop, type MaterialStack } from "./loot";
+import { RUN_BUFF_ORDER } from "../roguelike";
 
 function stack(item: ReturnType<typeof groupDrop>, quantity: number): MaterialStack {
   return { id: item.id, name: item.name, rarity: item.rarity, itemLevel: item.itemLevel, glyph: item.glyph, quantity };
 }
 
 describe("IWT2-style gear infusions", () => {
+  it("offers all 18 roguelike buffs as passive infusion choices", () => {
+    expect(PASSIVE_INFUSIONS.map((passive) => passive.id)).toEqual(RUN_BUFF_ORDER);
+  });
   it("requires a +5 anchor and atomically spends five Ascendant plus five Mythic group drops", () => {
     const progress = createDefaultGearProgress();
     progress.brann.slots.weapon.level = 5;
@@ -54,9 +59,10 @@ describe("IWT2-style gear infusions", () => {
     const progress = createDefaultGearProgress();
     progress.vale.slots.feet.level = 10;
     expect(passiveInfusionUnlocked(progress)).toBe(true);
-    const infused = equipPassiveInfusion(progress, "priest", "deep-wells");
+    const infused = equipPassiveInfusion(progress, "priest", "mend-efficiency");
     useGameStore.getState().configureHealer("priest", "Aelia", createClassInventory("priest"), "bulldrome", "encounter", infused);
-    expect(useGameStore.getState().maxMana).toBe(120);
-    expect(useGameStore.getState().runBuffs).toEqual([]);
+    expect(useGameStore.getState().runModifiers.mendManaMultiplier).toBe(0.75);
+    expect(useGameStore.getState().runBuffRanks).toEqual({});
+    expect(useGameStore.getState().passiveRunBuffId).toBe("mend-efficiency");
   });
 });

src/game/roguelike.test.ts

@@ -1,12 +1,16 @@
 import { describe, expect, it } from "vitest";
-import { freshParty } from "./data";
 import {
-  applyRunBuffsToParty,
+  RUN_BUFF_ORDER,
+  RUN_BUFFS,
   bossHealthMultiplier,
-  runHealingMultiplier,
-  runMaxMana,
+  compileRunModifiers,
+  effectiveRunBuffRank,
+  formatRunBuffEffect,
+  increaseRunBuffRank,
   selectRandomBossPair,
+  selectRunBuffDraft,
 } from "./roguelike";
+import type { RunBuffRanks } from "./types";
 
 describe("roguelike progression", () => {
   it("adds 10% base boss HP per completed round", () => {
@@ -15,14 +19,51 @@ describe("roguelike progression", () => {
     expect(bossHealthMultiplier(5)).toBe(1.4);
   });
 
-  it("stacks each persistent buff independently", () => {
-    const buffs = ["vital-bloom", "vital-bloom", "deep-wells", "restoring-grace"] as const;
-    const party = applyRunBuffsToParty(freshParty("priest", "Aelia"), buffs);
+  it("defines 18 unique infusion-eligible ability buffs without legacy ids", () => {
+    expect(RUN_BUFF_ORDER).toHaveLength(18);
+    expect(new Set(RUN_BUFF_ORDER)).toHaveLength(18);
+    expect(RUN_BUFF_ORDER.every((id) => RUN_BUFFS[id].infusionEligible)).toBe(true);
+    expect(RUN_BUFF_ORDER).not.toContain("vital-bloom");
+    expect(RUN_BUFF_ORDER).not.toContain("deep-wells");
+    expect(RUN_BUFF_ORDER).not.toContain("restoring-grace");
+  });
 
-    expect(party[0].maxHp).toBe(124);
-    expect(party[1].maxHp).toBe(186);
-    expect(runMaxMana(buffs)).toBe(120);
-    expect(runHealingMultiplier(buffs)).toBe(1.15);
+  it("compiles capped ranks and overlays one passive infusion rank", () => {
+    const ranks: RunBuffRanks = {
+      "mend-echo": 9,
+      "mend-efficiency": 2,
+      "renew-duration": 2,
+      "shield-guard": 3,
+      "purify-renew": 1,
+      "radiance-shield": 2,
+      "barrier-regen": 3,
+    };
+    const modifiers = compileRunModifiers(ranks, "mend-efficiency");
+
+    expect(modifiers.mendExtraTargets).toBe(3);
+    expect(modifiers.mendManaMultiplier).toBeCloseTo(0.75 ** 3);
+    expect(modifiers.renewDurationBonus).toBe(4);
+    expect(modifiers.shieldDamageTakenMultiplier).toBeCloseTo(0.76);
+    expect(modifiers.purifyAppliesRenew).toBe(true);
+    expect(modifiers.radianceAbsorb).toBe(18);
+    expect(modifiers.barrierHealingPerSecond).toBe(9);
+    expect(effectiveRunBuffRank(ranks, "mend-efficiency", "mend-efficiency")).toBe(3);
+    expect(formatRunBuffEffect("mend-efficiency", 3)).toBe("58% less Mend mana cost");
+  });
+
+  it("increments earned ranks without exceeding each buff cap", () => {
+    const first = increaseRunBuffRank({}, "purify-renew");
+    const capped = increaseRunBuffRank(first, "purify-renew");
+    expect(first["purify-renew"]).toBe(1);
+    expect(capped["purify-renew"]).toBe(1);
+  });
+
+  it("draws unique eligible choices and handles one or zero remaining buffs", () => {
+    expect(selectRunBuffDraft({}, null, () => 0)).toEqual(RUN_BUFF_ORDER.slice(0, 3));
+    const maxed = Object.fromEntries(RUN_BUFF_ORDER.map((id) => [id, RUN_BUFFS[id].maxRank])) as RunBuffRanks;
+    maxed["mend-efficiency"] = 2;
+    expect(selectRunBuffDraft(maxed, null, () => 0)).toEqual(["mend-efficiency"]);
+    expect(selectRunBuffDraft(maxed, "mend-efficiency", () => 0)).toEqual([]);
   });
 
   it("selects a distinct pair that excludes both bosses from the prior round", () => {

src/game/roguelike.ts

@@ -1,62 +1,203 @@
 import { AVAILABLE_BOSS_IDS } from "./bossCatalog";
-import type { BossId, PartyMember, RunBuffId } from "./types";
+import type { AbilityId, BossId, RunBuffId, RunBuffRanks } from "./types";
+
+export type RunBuffEffectKind =
+  | "extra-target"
+  | "mana-cost"
+  | "cast-time"
+  | "duration"
+  | "healing"
+  | "absorb"
+  | "damage-reduction"
+  | "trigger-renew"
+  | "trigger-shield"
+  | "chain-cleanse"
+  | "cooldown"
+  | "barrier-healing";
 
 export interface RunBuffDefinition {
   id: RunBuffId;
+  abilityId: AbilityId;
+  effectKind: RunBuffEffectKind;
   name: string;
   icon: string;
   summary: string;
   detail: string;
   accent: string;
+  maxRank: 1 | 3;
+  infusionEligible: true;
 }
 
-export const RUN_BUFF_ORDER: readonly RunBuffId[] = ["vital-bloom", "deep-wells", "restoring-grace"];
+export interface CompiledRunModifiers {
+  mendExtraTargets: number;
+  mendManaMultiplier: number;
+  mendCastTimeMultiplier: number;
+  renewExtraTargets: number;
+  renewDurationBonus: number;
+  renewHealingMultiplier: number;
+  shieldExtraTargets: number;
+  shieldAbsorbMultiplier: number;
+  shieldDamageTakenMultiplier: number;
+  purifyAppliesRenew: boolean;
+  purifyAppliesShield: boolean;
+  purifyExtraTargets: number;
+  radianceCooldownMultiplier: number;
+  radianceAppliesRenew: boolean;
+  radianceAbsorb: number;
+  barrierCooldownMultiplier: number;
+  barrierDurationBonus: number;
+  barrierHealingPerSecond: number;
+}
+
+export const RUN_BUFF_ORDER: readonly RunBuffId[] = [
+  "mend-echo",
+  "mend-efficiency",
+  "mend-cast-speed",
+  "renew-spread",
+  "renew-duration",
+  "renew-potency",
+  "shield-echo",
+  "shield-potency",
+  "shield-guard",
+  "purify-renew",
+  "purify-shield",
+  "purify-chain",
+  "radiance-cooldown",
+  "radiance-renew",
+  "radiance-shield",
+  "barrier-cooldown",
+  "barrier-duration",
+  "barrier-regen",
+];
+
+const buff = (
+  id: RunBuffId,
+  abilityId: AbilityId,
+  effectKind: RunBuffEffectKind,
+  name: string,
+  icon: string,
+  summary: string,
+  detail: string,
+  accent: string,
+  maxRank: 1 | 3 = 3,
+): RunBuffDefinition => ({ id, abilityId, effectKind, name, icon, summary, detail, accent, maxRank, infusionEligible: true });
 
 export const RUN_BUFFS: Record<RunBuffId, RunBuffDefinition> = {
-  "vital-bloom": {
-    id: "vital-bloom",
-    name: "Vital Bloom",
-    icon: "♧",
-    summary: "+12% party max HP",
-    detail: "Stacks each time chosen. New round starts at full health.",
-    accent: "#74d18c",
-  },
-  "deep-wells": {
-    id: "deep-wells",
-    name: "Deep Wells",
-    icon: "◇",
-    summary: "+20 maximum mana",
-    detail: "Stacks each time chosen. New round starts with full mana.",
-    accent: "#69baff",
-  },
-  "restoring-grace": {
-    id: "restoring-grace",
-    name: "Restoring Grace",
-    icon: "✦",
-    summary: "+15% healing done",
-    detail: "Strengthens Mend, Renew, and Radiance. Stacks additively.",
-    accent: "#f1d479",
-  },
+  "mend-echo": buff("mend-echo", "mend", "extra-target", "Echoing", "+", "+1 secondary ally", "Mend heals another injured ally for 50% power per rank.", "#f2d690"),
+  "mend-efficiency": buff("mend-efficiency", "mend", "mana-cost", "Efficient", "▽", "−25% mana cost", "Mend mana cost is multiplied by 0.75 per rank, rounded up.", "#72c8ef"),
+  "mend-cast-speed": buff("mend-cast-speed", "mend", "cast-time", "Swift", "»", "−25% cast time", "Mend cast time is multiplied by 0.75 per rank.", "#d8b4ff"),
+  "renew-spread": buff("renew-spread", "renew", "extra-target", "Spreading", "✣", "+1 injured ally", "Direct Renew casts affect another injured ally per rank.", "#71df9c"),
+  "renew-duration": buff("renew-duration", "renew", "duration", "Enduring", "◷", "+2s duration", "Every Renew effect lasts 2 seconds longer per rank.", "#83d9aa"),
+  "renew-potency": buff("renew-potency", "renew", "healing", "Potent", "↑", "+20% tick healing", "Every Renew tick heals 20% more per rank.", "#a8e875"),
+  "shield-echo": buff("shield-echo", "shield", "extra-target", "Echoing Aegis", "◇", "+1 secondary ally", "Shield another injured ally for 50% power per rank.", "#75c9ff"),
+  "shield-potency": buff("shield-potency", "shield", "absorb", "Reinforced Aegis", "⬡", "+25% absorption", "All healer-created absorption is 25% stronger per rank.", "#61b9ee"),
+  "shield-guard": buff("shield-guard", "shield", "damage-reduction", "Guardian Aegis", "▣", "−8% shielded damage", "Targets with absorption take 8% less incoming damage per rank.", "#8baeff"),
+  "purify-renew": buff("purify-renew", "purify", "trigger-renew", "Cleansing Renewal", "✧", "Purify applies Renew", "Every ally cleansed by Purify also gains Renew.", "#b58cff", 1),
+  "purify-shield": buff("purify-shield", "purify", "trigger-shield", "Purifying Ward", "◈", "Purify grants 50% Shield", "Every ally cleansed by Purify gains half-strength absorption.", "#9f9aff", 1),
+  "purify-chain": buff("purify-chain", "purify", "chain-cleanse", "Mass Purification", "✦", "+1 cleansed ally", "Purify also cleanses the most injured other debuffed ally.", "#d4a7ff", 1),
+  "radiance-cooldown": buff("radiance-cooldown", "radiance", "cooldown", "Quickened Radiance", "☀", "−20% cooldown", "Radiance cooldown is multiplied by 0.8 per rank.", "#ffd66b"),
+  "radiance-renew": buff("radiance-renew", "radiance", "trigger-renew", "Radiant Renewal", "❈", "Radiance applies Renew", "Radiance applies Renew to every living party member.", "#d4e978", 1),
+  "radiance-shield": buff("radiance-shield", "radiance", "absorb", "Radiant Aegis", "◎", "+9 party absorption", "Radiance grants 9 base absorption to every living ally per rank.", "#ffe58c"),
+  "barrier-cooldown": buff("barrier-cooldown", "barrier", "cooldown", "Hallowed Ground", "◉", "−20% cooldown", "Barrier cooldown is multiplied by 0.8 per rank.", "#e7cb62"),
+  "barrier-duration": buff("barrier-duration", "barrier", "duration", "Lingering Barrier", "⌛", "+2s duration", "Barrier remains active 2 seconds longer per rank.", "#cdbd69"),
+  "barrier-regen": buff("barrier-regen", "barrier", "barrier-healing", "Restorative Ground", "✚", "+3 healing per second", "Living allies inside Barrier heal every second per rank.", "#84d69a"),
 };
 
-export function countRunBuff(buffs: readonly RunBuffId[], buffId: RunBuffId) {
-  return buffs.reduce((count, current) => count + Number(current === buffId), 0);
+export function runBuffRank(ranks: RunBuffRanks, buffId: RunBuffId): number {
+  return Math.max(0, Math.min(RUN_BUFFS[buffId].maxRank, Math.floor(ranks[buffId] ?? 0)));
 }
 
-export function applyRunBuffsToParty(party: PartyMember[], buffs: readonly RunBuffId[]) {
-  const vitalityMultiplier = 1 + countRunBuff(buffs, "vital-bloom") * 0.12;
-  return party.map((member) => {
-    const maxHp = Math.round(member.maxHp * vitalityMultiplier);
-    return { ...member, maxHp, hp: maxHp };
-  });
+export function effectiveRunBuffRank(ranks: RunBuffRanks, buffId: RunBuffId, passiveInfusionId: RunBuffId | null = null): number {
+  return Math.min(RUN_BUFFS[buffId].maxRank, runBuffRank(ranks, buffId) + Number(passiveInfusionId === buffId));
 }
 
-export function runMaxMana(buffs: readonly RunBuffId[]) {
-  return 100 + countRunBuff(buffs, "deep-wells") * 20;
+export function increaseRunBuffRank(ranks: RunBuffRanks, buffId: RunBuffId): RunBuffRanks {
+  const current = runBuffRank(ranks, buffId);
+  if (current >= RUN_BUFFS[buffId].maxRank) return { ...ranks };
+  return { ...ranks, [buffId]: current + 1 };
 }
 
-export function runHealingMultiplier(buffs: readonly RunBuffId[]) {
-  return 1 + countRunBuff(buffs, "restoring-grace") * 0.15;
+export function selectRunBuffDraft(
+  ranks: RunBuffRanks,
+  passiveInfusionId: RunBuffId | null = null,
+  random: () => number = Math.random,
+  count = 3,
+): RunBuffId[] {
+  const pool = RUN_BUFF_ORDER.filter((id) => effectiveRunBuffRank(ranks, id, passiveInfusionId) < RUN_BUFFS[id].maxRank);
+  const choices: RunBuffId[] = [];
+  while (choices.length < count && pool.length > 0) {
+    const sample = random();
+    const randomValue = Number.isFinite(sample) ? Math.max(0, Math.min(0.999999999, sample)) : 0;
+    const index = Math.floor(randomValue * pool.length);
+    choices.push(pool[index]);
+    pool.splice(index, 1);
+  }
+  return choices;
+}
+
+export function compileRunModifiers(ranks: RunBuffRanks, passiveInfusionId: RunBuffId | null = null): CompiledRunModifiers {
+  const rank = (id: RunBuffId) => effectiveRunBuffRank(ranks, id, passiveInfusionId);
+  return {
+    mendExtraTargets: rank("mend-echo"),
+    mendManaMultiplier: 0.75 ** rank("mend-efficiency"),
+    mendCastTimeMultiplier: 0.75 ** rank("mend-cast-speed"),
+    renewExtraTargets: rank("renew-spread"),
+    renewDurationBonus: rank("renew-duration") * 2,
+    renewHealingMultiplier: 1 + rank("renew-potency") * 0.2,
+    shieldExtraTargets: rank("shield-echo"),
+    shieldAbsorbMultiplier: 1 + rank("shield-potency") * 0.25,
+    shieldDamageTakenMultiplier: 1 - rank("shield-guard") * 0.08,
+    purifyAppliesRenew: rank("purify-renew") > 0,
+    purifyAppliesShield: rank("purify-shield") > 0,
+    purifyExtraTargets: rank("purify-chain"),
+    radianceCooldownMultiplier: 0.8 ** rank("radiance-cooldown"),
+    radianceAppliesRenew: rank("radiance-renew") > 0,
+    radianceAbsorb: rank("radiance-shield") * 9,
+    barrierCooldownMultiplier: 0.8 ** rank("barrier-cooldown"),
+    barrierDurationBonus: rank("barrier-duration") * 2,
+    barrierHealingPerSecond: rank("barrier-regen") * 3,
+  };
+}
+
+export function runAbilityManaCost(abilityId: AbilityId, baseCost: number, modifiers: CompiledRunModifiers): number {
+  if (baseCost <= 0) return 0;
+  const multiplier = abilityId === "mend" ? modifiers.mendManaMultiplier : 1;
+  return Math.max(1, Math.ceil(baseCost * multiplier));
+}
+
+export function runAbilityCastTime(abilityId: AbilityId, baseCastTime: number, modifiers: CompiledRunModifiers): number {
+  return abilityId === "mend" ? baseCastTime * modifiers.mendCastTimeMultiplier : baseCastTime;
+}
+
+export function runAbilityCooldown(abilityId: AbilityId, baseCooldown: number, modifiers: CompiledRunModifiers): number {
+  if (abilityId === "radiance") return baseCooldown * modifiers.radianceCooldownMultiplier;
+  if (abilityId === "barrier") return baseCooldown * modifiers.barrierCooldownMultiplier;
+  return baseCooldown;
+}
+
+export function formatRunBuffEffect(buffId: RunBuffId, requestedRank: number): string {
+  const rank = Math.max(1, Math.min(RUN_BUFFS[buffId].maxRank, requestedRank));
+  const reduced = (multiplier: number) => `${Math.round((1 - multiplier ** rank) * 100)}% less`;
+  switch (buffId) {
+    case "mend-echo": return `${rank} secondary ${rank === 1 ? "ally" : "allies"} at 50% healing`;
+    case "mend-efficiency": return `${reduced(0.75)} Mend mana cost`;
+    case "mend-cast-speed": return `${reduced(0.75)} Mend cast time`;
+    case "renew-spread": return `${rank} additional Renew ${rank === 1 ? "target" : "targets"}`;
+    case "renew-duration": return `+${rank * 2}s Renew duration`;
+    case "renew-potency": return `+${rank * 20}% Renew tick healing`;
+    case "shield-echo": return `${rank} secondary Shield ${rank === 1 ? "target" : "targets"} at 50% power`;
+    case "shield-potency": return `+${rank * 25}% healer absorption`;
+    case "shield-guard": return `${rank * 8}% less damage while shielded`;
+    case "purify-renew": return "Purify applies Renew";
+    case "purify-shield": return "Purify grants 50% Shield";
+    case "purify-chain": return "Purify cleanses one additional ally";
+    case "radiance-cooldown": return `${reduced(0.8)} Radiance cooldown`;
+    case "radiance-renew": return "Radiance applies Renew party-wide";
+    case "radiance-shield": return `+${rank * 9} base party absorption`;
+    case "barrier-cooldown": return `${reduced(0.8)} Barrier cooldown`;
+    case "barrier-duration": return `+${rank * 2}s Barrier duration`;
+    case "barrier-regen": return `${rank * 3} Barrier healing per second`;
+  }
 }
 
 export function bossHealthMultiplier(round: number) {

src/game/store.test.ts

@@ -3,9 +3,25 @@ import { BULL_CHARGE } from "./bossMechanics";
 import { distance, pointToSegmentDistance } from "./geometry";
 import { barrierProtects, useGameStore } from "./store";
 import { createClassInventory, HEALER_CLASSES } from "./healers";
-import { dropVexaVenomPool, VEXA_VENOM } from "./bosses/vexa";
+import { dropVenomPool, VENOM_PURGE } from "./bosses/mechanicPool";
 import { ARENA_CENTER, isInsideArena } from "./arena";
 import { BOSS_DEFINITIONS } from "./bossCatalog";
+import { RUN_BUFF_ORDER, RUN_BUFFS, compileRunModifiers } from "./roguelike";
+import type { RunBuffRanks } from "./types";
+
+function startBuffedEncounter(runBuffRanks: RunBuffRanks) {
+  useGameStore.getState().configureHealer("priest", "Aelia", createClassInventory("priest"));
+  useGameStore.setState({ runBuffRanks, runModifiers: compileRunModifiers(runBuffRanks) });
+  useGameStore.getState().startEncounter();
+  useGameStore.setState((state) => ({
+    boss: { ...state.boss, nextMeleeAt: 999 },
+    bossMotion: { ...state.bossMotion, nextMechanicAt: 999 },
+  }));
+}
+
+function testDebuff(id: string) {
+  return { id, name: id, expiresAt: 10, nextTickAt: 9, tickDamage: 1 };
+}
 
 describe("Disc Priest combat simulation", () => {
   beforeEach(() => {
@@ -106,15 +122,16 @@ describe("Disc Priest combat simulation", () => {
   });
 
   it("Purify removes Ember Brand from selected ally", () => {
-    useGameStore.getState().tick(2);
-    useGameStore.getState().tick(2);
-    useGameStore.getState().tick(1.1);
-    const branded = useGameStore.getState().party.find((member) => member.id === "nia")!;
+    useGameStore.setState((state) => ({
+      bossMotion: { ...state.bossMotion, mechanicCount: 3, nextMechanicAt: state.time },
+    }));
+    useGameStore.getState().tick(0.1);
+    const branded = useGameStore.getState().party.find((member) => member.debuffs.some((debuff) => debuff.name === "Ember Brand"))!;
     expect(branded.debuffs).toHaveLength(1);
 
-    useGameStore.getState().selectMember("nia");
+    useGameStore.getState().selectMember(branded.id);
     expect(useGameStore.getState().castAbility("purify")).toBe(true);
-    expect(useGameStore.getState().party.find((member) => member.id === "nia")?.debuffs).toHaveLength(0);
+    expect(useGameStore.getState().party.find((member) => member.id === branded.id)?.debuffs).toHaveLength(0);
   });
 
   it("Radiance heals every living party member", () => {
@@ -131,8 +148,7 @@ describe("Disc Priest combat simulation", () => {
   it("reduces damage by 30% for party members inside Barrier", () => {
     useGameStore.getState().setPlayerPosition([0, -3.7]);
     useGameStore.setState((state) => ({
-      boss: { ...state.boss, nextNovaAt: 999, nextBrandAt: 999 },
-      bossMotion: { ...state.bossMotion, nextChargeAt: 999 },
+      boss: { ...state.boss },
     }));
     expect(useGameStore.getState().castAbility("barrier")).toBe(true);
     useGameStore.getState().tick(2);
@@ -190,40 +206,40 @@ describe("Disc Priest combat simulation", () => {
   });
 
   it("telegraphs, executes, and recovers from a Bull charge", () => {
-    while (useGameStore.getState().time < 7.1) useGameStore.getState().tick(0.1);
+    while (useGameStore.getState().bossMotion.mode !== "telegraph") useGameStore.getState().tick(0.1);
     const telegraph = useGameStore.getState().bossMotion;
     expect(telegraph.mode).toBe("telegraph");
-    expect(telegraph.chargeTargetId).toBe("nia");
+    const targetId = telegraph.chargeTargetId;
 
     const midpoint: [number, number] = [
       (telegraph.chargeStart[0] + telegraph.chargeEnd[0]) / 2,
       (telegraph.chargeStart[1] + telegraph.chargeEnd[1]) / 2,
     ];
     useGameStore.setState((state) => ({
-      partyPositions: { ...state.partyPositions, nia: midpoint },
-      party: state.party.map((member) => member.id === "nia" ? { ...member, knockedUntil: state.time + 10 } : member),
+      partyPositions: { ...state.partyPositions, [targetId]: midpoint },
+      party: state.party.map((member) => member.id === targetId ? { ...member, knockedUntil: state.time + 10 } : member),
     }));
 
     while (useGameStore.getState().bossMotion.mode === "telegraph") useGameStore.getState().tick(0.1);
-    for (let step = 0; step < 30 && !useGameStore.getState().bossMotion.chargeHitIds.includes("nia"); step += 1) {
+    for (let step = 0; step < 30 && !useGameStore.getState().bossMotion.chargeHitIds.includes(targetId); step += 1) {
       useGameStore.getState().tick(0.05);
     }
 
     const hitState = useGameStore.getState();
-    expect(hitState.bossMotion.chargeHitIds).toContain("nia");
-    expect(hitState.party.find((member) => member.id === "nia")!.knockedUntil - hitState.time).toBeCloseTo(0.75, 1);
+    expect(hitState.bossMotion.chargeHitIds).toContain(targetId);
+    expect(hitState.party.find((member) => member.id === targetId)!.knockedUntil - hitState.time).toBeCloseTo(0.75, 1);
 
     for (let step = 0; step < 100 && useGameStore.getState().bossMotion.mode !== "holding"; step += 1) {
       useGameStore.getState().tick(0.1);
     }
     const recovered = useGameStore.getState();
     expect(recovered.bossMotion.mode).toBe("holding");
-    expect(recovered.bossMotion.nextChargeAt).toBeGreaterThan(recovered.time);
+    expect(recovered.bossMotion.nextMechanicAt).toBeGreaterThan(recovered.time);
   });
 
   it("moves every mobile AI party member out of the charge lane before impact", () => {
     useGameStore.setState((state) => ({
-      boss: { ...state.boss, nextMeleeAt: 999, nextNovaAt: 999, nextBrandAt: 999 },
+      boss: { ...state.boss, nextMeleeAt: 999 },
     }));
     while (useGameStore.getState().bossMotion.mode !== "telegraph") {
       useGameStore.getState().tick(0.1);
@@ -260,7 +276,7 @@ describe("Disc Priest combat simulation", () => {
 
   it("marks a stack target after three charges and splits 200 pounce damage", () => {
     useGameStore.setState((state) => ({
-      boss: { ...state.boss, nextMeleeAt: 999, nextNovaAt: 999, nextBrandAt: 999 },
+      boss: { ...state.boss, nextMeleeAt: 999 },
       playerPosition: [0, 0],
       partyPositions: {
         aelia: [0, 0],
@@ -269,18 +285,13 @@ describe("Disc Priest combat simulation", () => {
         orin: [0, 0],
         vale: [0, 0],
       },
-      bossMotion: {
-        ...state.bossMotion,
-        mode: "returning",
-        position: [0, -1],
-        chargesSincePounce: 3,
-      },
+      bossMotion: { ...state.bossMotion, activeMechanicId: null, mode: "holding", position: [0, -1], mechanicCount: 1, nextMechanicAt: state.time },
     }));
     const startingHp = Object.fromEntries(useGameStore.getState().party.map((member) => [member.id, member.hp]));
 
     useGameStore.getState().tick(0.05);
     expect(useGameStore.getState().bossMotion.mode).toBe("stacking");
-    expect(useGameStore.getState().bossMotion.pounceTargetId).toBe("aelia");
+    expect(useGameStore.getState().bossMotion.pounceTargetId).toBeTruthy();
     expect(useGameStore.getState().bossMotion.phaseEndsAt - useGameStore.getState().time).toBeCloseTo(5, 2);
 
     for (let step = 0; step < 70 && useGameStore.getState().bossMotion.mode === "stacking"; step += 1) {
@@ -292,7 +303,7 @@ describe("Disc Priest combat simulation", () => {
       useGameStore.getState().tick(0.05);
     }
     const impacted = useGameStore.getState();
-    expect(impacted.bossMotion.mode).toBe("returning");
+    expect(impacted.bossMotion.mode).toBe("holding");
     for (const member of impacted.party) {
       expect(member.hp).toBeCloseTo(startingHp[member.id] - 28, 3);
     }
@@ -345,7 +356,7 @@ describe("Broodfang encounter", () => {
     useGameStore.setState((state) => ({
       boss: { ...state.boss, nextMeleeAt: 999 },
       bossMotion: {
-        ...dropVexaVenomPool(state.bossMotion, "aelia", [0, 0], state.time),
+        ...dropVenomPool(state.bossMotion, "aelia", [0, 0], state.time),
         nextMechanicAt: 999,
       },
     }));
@@ -356,8 +367,8 @@ describe("Broodfang encounter", () => {
     useGameStore.getState().tick(1);
     const secondTickHp = useGameStore.getState().party[0].hp;
 
-    expect(firstTickHp).toBe(startingHp - VEXA_VENOM.poolDamage);
-    expect(secondTickHp).toBe(firstTickHp - VEXA_VENOM.poolDamage);
+    expect(firstTickHp).toBe(startingHp - VENOM_PURGE.poolDamage);
+    expect(secondTickHp).toBe(firstTickHp - VENOM_PURGE.poolDamage);
 
     useGameStore.getState().setPlayerPosition([6, 6]);
     useGameStore.getState().tick(1);
@@ -418,6 +429,129 @@ describe("PVE dual-boss encounter", () => {
   });
 });
 
+describe("Roguelike ability buffs", () => {
+  it("reduces Mend cost and cast time while echoing to lowest-health allies", () => {
+    startBuffedEncounter({ "mend-echo": 2, "mend-efficiency": 3, "mend-cast-speed": 3 });
+    useGameStore.setState((state) => ({
+      party: state.party.map((member) => ({
+        ...member,
+        hp: member.id === "aelia" ? 90 : member.id === "brann" ? 60 : member.id === "nia" ? 10 : member.id === "orin" ? 20 : 30,
+      })),
+    }));
+    useGameStore.getState().selectMember("brann");
+
+    expect(useGameStore.getState().castAbility("mend")).toBe(true);
+    expect(useGameStore.getState().mana).toBe(97);
+    expect(useGameStore.getState().activeCast?.completesAt).toBeCloseTo(0.5 * 0.75 ** 3);
+    useGameStore.getState().tick(0.22);
+
+    const party = useGameStore.getState().party;
+    expect(party.find((member) => member.id === "brann")?.hp).toBe(98);
+    expect(party.find((member) => member.id === "nia")?.hp).toBe(29);
+    expect(party.find((member) => member.id === "orin")?.hp).toBe(39);
+    expect(party.find((member) => member.id === "vale")?.hp).toBe(30);
+  });
+
+  it("spreads longer, stronger Renew effects without recursive targeting", () => {
+    startBuffedEncounter({ "renew-spread": 2, "renew-duration": 2, "renew-potency": 2 });
+    useGameStore.setState((state) => ({
+      party: state.party.map((member) => ({
+        ...member,
+        hp: member.id === "brann" ? 50 : member.id === "nia" ? 10 : member.id === "orin" ? 20 : member.hp,
+      })),
+    }));
+    useGameStore.getState().selectMember("brann");
+    expect(useGameStore.getState().castAbility("renew")).toBe(true);
+
+    let party = useGameStore.getState().party;
+    expect(party.filter((member) => member.renewExpiresAt === 12).map((member) => member.id)).toEqual(["brann", "nia", "orin"]);
+    useGameStore.getState().tick(1.01);
+    party = useGameStore.getState().party;
+    expect(party.find((member) => member.id === "brann")?.hp).toBeCloseTo(59.8);
+    expect(party.find((member) => member.id === "nia")?.hp).toBeCloseTo(19.8);
+    expect(party.find((member) => member.id === "orin")?.hp).toBeCloseTo(29.8);
+  });
+
+  it("strengthens and echoes Shield to deterministic secondary targets", () => {
+    startBuffedEncounter({ "shield-echo": 2, "shield-potency": 2 });
+    useGameStore.setState((state) => ({
+      party: state.party.map((member) => ({
+        ...member,
+        hp: member.id === "brann" ? 70 : member.id === "nia" ? 10 : member.id === "orin" ? 20 : member.hp,
+      })),
+    }));
+    useGameStore.getState().selectMember("brann");
+    expect(useGameStore.getState().castAbility("shield")).toBe(true);
+
+    const party = useGameStore.getState().party;
+    expect(party.find((member) => member.id === "brann")?.absorb).toBe(54);
+    expect(party.find((member) => member.id === "nia")?.absorb).toBe(27);
+    expect(party.find((member) => member.id === "orin")?.absorb).toBe(27);
+  });
+
+  it("chains Purify and applies triggered Renew and half-strength Shield", () => {
+    startBuffedEncounter({ "purify-renew": 1, "purify-shield": 1, "purify-chain": 1 });
+    useGameStore.setState((state) => ({
+      party: state.party.map((member) => member.id === "brann"
+        ? { ...member, hp: 70, debuffs: [testDebuff("tank-mark")] }
+        : member.id === "nia"
+          ? { ...member, hp: 10, debuffs: [testDebuff("ranger-mark")] }
+          : member.id === "orin"
+            ? { ...member, hp: 20, debuffs: [testDebuff("mage-mark")] }
+            : member),
+    }));
+    useGameStore.getState().selectMember("brann");
+    expect(useGameStore.getState().castAbility("purify")).toBe(true);
+
+    const party = useGameStore.getState().party;
+    for (const id of ["brann", "nia"] as const) {
+      const member = party.find((candidate) => candidate.id === id)!;
+      expect(member.debuffs).toEqual([]);
+      expect(member.renewExpiresAt).toBe(8);
+      expect(member.absorb).toBe(18);
+    }
+    expect(party.find((member) => member.id === "orin")?.debuffs).toHaveLength(1);
+  });
+
+  it("applies Radiance cooldown, party Renew, and party absorption", () => {
+    startBuffedEncounter({ "radiance-cooldown": 3, "radiance-renew": 1, "radiance-shield": 2 });
+    useGameStore.setState((state) => ({ party: state.party.map((member) => ({ ...member, hp: Math.max(1, member.hp - 30) })) }));
+    expect(useGameStore.getState().castAbility("radiance")).toBe(true);
+
+    const state = useGameStore.getState();
+    expect(state.cooldowns.radiance).toBeCloseTo(14 * 0.8 ** 3);
+    expect(state.party.every((member) => member.renewExpiresAt === 8)).toBe(true);
+    expect(state.party.every((member) => member.absorb === 18)).toBe(true);
+  });
+
+  it("extends, quickens, and pulses healing from Barrier", () => {
+    startBuffedEncounter({ "barrier-cooldown": 3, "barrier-duration": 3, "barrier-regen": 3 });
+    useGameStore.setState((state) => ({
+      party: state.party.map((member) => member.id === "aelia" ? { ...member, hp: 50 } : member),
+    }));
+    expect(useGameStore.getState().castAbility("barrier")).toBe(true);
+    expect(useGameStore.getState().cooldowns.barrier).toBeCloseTo(60 * 0.8 ** 3);
+    expect(useGameStore.getState().barrier.expiresAt).toBe(14);
+    useGameStore.getState().tick(1.01);
+    expect(useGameStore.getState().party.find((member) => member.id === "aelia")?.hp).toBe(59);
+    expect(useGameStore.getState().barrier.nextHealAt).toBe(2);
+  });
+
+  it("reduces incoming damage while absorption is present", () => {
+    startBuffedEncounter({ "shield-guard": 3 });
+    useGameStore.setState((state) => ({
+      party: state.party.map((member) => member.id === "aelia" ? {
+        ...member,
+        hp: 50,
+        absorb: 100,
+        debuffs: [{ id: "pulse", name: "Pulse", expiresAt: 2, nextTickAt: 0.5, tickDamage: 10 }],
+      } : member),
+    }));
+    useGameStore.getState().tick(1);
+    expect(useGameStore.getState().party.find((member) => member.id === "aelia")?.absorb).toBeCloseTo(92.4);
+  });
+});
+
 describe("Roguelike rounds", () => {
   beforeEach(() => {
     useGameStore.getState().configureHealer(
@@ -445,23 +579,43 @@ describe("Roguelike rounds", () => {
     expect(useGameStore.getState().phase).toBe("intermission");
     expect(useGameStore.getState().round).toBe(1);
     expect(useGameStore.getState().time).toBe(intermissionTime);
-    expect(useGameStore.getState().chooseRunBuff("vital-bloom")).toBe(true);
+    const chosenBuffId = useGameStore.getState().draftBuffIds[0]!;
+    expect(chosenBuffId).toBeDefined();
+    expect(useGameStore.getState().chooseRunBuff(chosenBuffId)).toBe(true);
 
     const roundTwo = useGameStore.getState();
     const nextBossIds = [roundTwo.boss.id, roundTwo.additionalBosses[0].boss.id];
     expect(roundTwo.phase).toBe("combat");
     expect(roundTwo.round).toBe(2);
-    expect(roundTwo.runBuffs).toEqual(["vital-bloom"]);
+    expect(roundTwo.runBuffRanks[chosenBuffId]).toBe(1);
     expect(nextBossIds.every((bossId) => !previousBossIds.includes(bossId))).toBe(true);
     expect(roundTwo.boss.maxHp).toBe(Math.round(BOSS_DEFINITIONS[roundTwo.boss.id].maxHp * 1.1));
     expect(roundTwo.additionalBosses[0].boss.maxHp).toBe(Math.round(BOSS_DEFINITIONS[roundTwo.additionalBosses[0].boss.id].maxHp * 1.1));
-    expect(roundTwo.party[0].maxHp).toBe(112);
+    expect(roundTwo.party[0].maxHp).toBe(100);
   });
 
   it("rejects buff claims outside intermission", () => {
-    expect(useGameStore.getState().chooseRunBuff("deep-wells")).toBe(false);
+    expect(useGameStore.getState().chooseRunBuff("mend-efficiency")).toBe(false);
     expect(useGameStore.getState().round).toBe(1);
   });
+
+  it("offers explicit continuation after every buff reaches maximum rank", () => {
+    const maxedRanks = Object.fromEntries(RUN_BUFF_ORDER.map((id) => [id, RUN_BUFFS[id].maxRank])) as RunBuffRanks;
+    useGameStore.setState({
+      phase: "intermission",
+      runBuffRanks: maxedRanks,
+      runModifiers: compileRunModifiers(maxedRanks),
+      draftBuffIds: [],
+      selectedRunBuffId: null,
+    });
+
+    expect(useGameStore.getState().continueRoguelikeRound()).toBe(true);
+    expect(useGameStore.getState().phase).toBe("combat");
+    expect(useGameStore.getState().round).toBe(2);
+    expect(useGameStore.getState().runBuffRanks).toEqual(maxedRanks);
+    expect(useGameStore.getState().draftBuffIds).toEqual([]);
+    expect(useGameStore.getState().continueRoguelikeRound()).toBe(false);
+  });
 });
 
 describe("shared arena boundary", () => {
@@ -473,8 +627,8 @@ describe("shared arena boundary", () => {
   it("constrains player, party, and boss positions to the same room", () => {
     useGameStore.getState().setPlayerPosition([100, 100]);
     useGameStore.setState((state) => ({
-      boss: { ...state.boss, nextMeleeAt: 999, nextNovaAt: 999, nextBrandAt: 999 },
-      bossMotion: { ...state.bossMotion, position: [100, -100], nextChargeAt: 999 },
+      boss: { ...state.boss, nextMeleeAt: 999 },
+      bossMotion: { ...state.bossMotion, position: [100, -100] },
       partyPositions: {
         ...state.partyPositions,
         brann: [50, 50],
@@ -533,6 +687,7 @@ describe("Tempestscale encounter", () => {
       partyPositions: { ...state.partyPositions, aelia: [0, 1] },
       bossMotion: {
         ...state.bossMotion,
+        activeMechanicId: "storm-breath",
         mode: "breath_sweeping",
         position: [0, -2.8],
         phaseStartedAt: state.time,

src/game/store.ts

@@ -15,13 +15,16 @@ import { createClassInventory, HEALER_CLASSES } from "./healers";
 import { combatFormation, updatePartyPositions } from "./partyBehaviors";
 import { advancePartyCombat, createPartyCombatState, tankAuraProtects, type PartyCombatState, type PartyDamageEvent } from "./partyCombat";
 import {
-  RUN_BUFF_ORDER,
   RUN_BUFFS,
-  applyRunBuffsToParty,
   bossHealthMultiplier,
-  runHealingMultiplier,
-  runMaxMana,
+  compileRunModifiers,
+  increaseRunBuffRank,
+  runAbilityCastTime,
+  runAbilityCooldown,
+  runAbilityManaCost,
+  selectRunBuffDraft,
   selectRandomBossPair,
+  type CompiledRunModifiers,
 } from "./roguelike";
 import { createDefaultGearProgress, type GearProgress } from "./progression/gear";
 import { aiCombatModifiers, applyGearHealth, createEncounterGearModifiers, type EncounterGearModifiers } from "./progression/gearEffects";
@@ -41,6 +44,7 @@ import type {
   MemberId,
   PartyMember,
   RunBuffId,
+  RunBuffRanks,
   RunMode,
   ScenePulse,
   WorldPosition,
@@ -68,9 +72,11 @@ export interface GameState {
   phase: GamePhase;
   runMode: RunMode;
   round: number;
-  runBuffs: RunBuffId[];
+  runBuffRanks: RunBuffRanks;
   draftBuffIds: RunBuffId[];
-  selectedRunBuffId: RunBuffId;
+  selectedRunBuffId: RunBuffId | null;
+  passiveRunBuffId: RunBuffId | null;
+  runModifiers: CompiledRunModifiers;
   healingMultiplier: number;
   difficultySlug: DifficultySlug;
   difficultyDamageMultiplier: number;
@@ -112,6 +118,7 @@ export interface GameState {
   setPauseSelection: (selection: "resume" | "exit") => void;
   setSelectedRunBuff: (buffId: RunBuffId) => void;
   chooseRunBuff: (buffId: RunBuffId) => boolean;
+  continueRoguelikeRound: () => boolean;
 }
 
 const emptyCooldowns = (): Record<AbilityId, number> => ({
@@ -143,7 +150,6 @@ function createEncounterMotion(bossId: BossId, index: number, count: number): Bo
   motion.chargeEnd[0] += offset;
   motion.pounceCenter[0] += offset;
   const stagger = index * 2.4;
-  if (Number.isFinite(motion.nextChargeAt)) motion.nextChargeAt += stagger;
   if (Number.isFinite(motion.nextMechanicAt)) motion.nextMechanicAt += stagger;
   return constrainBossMotion(motion);
 }
@@ -154,8 +160,6 @@ function createEncounterBoss(bossId: BossId, index: number, count: number, healt
   boss.hp = boss.maxHp;
   const stagger = index * 0.8;
   if (Number.isFinite(boss.nextMeleeAt)) boss.nextMeleeAt += stagger;
-  if (Number.isFinite(boss.nextNovaAt)) boss.nextNovaAt += index * 2.4;
-  if (Number.isFinite(boss.nextBrandAt)) boss.nextBrandAt += index * 2.4;
   return { instanceId: `boss-${index}-${bossId}`, boss, motion: createEncounterMotion(bossId, index, count) };
 }
 
@@ -190,6 +194,45 @@ export function barrierProtects(position: WorldPosition, barrier: BarrierState,
   return barrier.expiresAt > time && distance(position, barrier.center) <= BARRIER_RADIUS;
 }
 
+function lowestHealthIndexes(
+  party: readonly PartyMember[],
+  excludedIndex: number,
+  count: number,
+  predicate: (member: PartyMember) => boolean = () => true,
+): number[] {
+  return party
+    .map((member, index) => ({ member, index }))
+    .filter(({ member, index }) => index !== excludedIndex && member.hp > 0 && predicate(member))
+    .sort((left, right) => (left.member.hp / left.member.maxHp) - (right.member.hp / right.member.maxHp) || left.index - right.index)
+    .slice(0, count)
+    .map(({ index }) => index);
+}
+
+function applyRenewAt(party: PartyMember[], index: number, time: number, modifiers: CompiledRunModifiers) {
+  if (party[index].hp <= 0) return;
+  party[index] = {
+    ...party[index],
+    renewExpiresAt: time + 8 + modifiers.renewDurationBonus,
+    renewNextTickAt: time + 1,
+  };
+}
+
+function addHealerAbsorb(
+  party: PartyMember[],
+  index: number,
+  baseAmount: number,
+  healingPower: number,
+  modifiers: CompiledRunModifiers,
+) {
+  if (party[index].hp <= 0 || baseAmount <= 0) return 0;
+  const amount = baseAmount * healingPower * modifiers.shieldAbsorbMultiplier;
+  party[index] = {
+    ...party[index],
+    absorb: Math.min(party[index].maxHp, party[index].absorb + amount),
+  };
+  return amount;
+}
+
 function damageMemberAt(
   member: PartyMember,
   amount: number,
@@ -201,6 +244,7 @@ function damageMemberAt(
   incomingDamageMultiplier = 1,
   gearModifiers?: EncounterGearModifiers,
   kind: "direct" | "hazard" = "direct",
+  shieldDamageTakenMultiplier = 1,
 ) {
   amount *= incomingDamageMultiplier;
   if (kind === "hazard") amount *= gearModifiers?.[member.id].hazardDamageTaken ?? 1;
@@ -211,7 +255,8 @@ function damageMemberAt(
     barrierProtects(position, barrier, time) ? BARRIER_DAMAGE_REDUCTION : 0,
     protectedByTank ? partyCombat?.tankAura.damageReduction ?? 0 : 0,
   );
-  return damageMember(member, amount * (1 - reduction));
+  const shieldMultiplier = member.absorb > 0 ? shieldDamageTakenMultiplier : 1;
+  return damageMember(member, amount * (1 - reduction) * shieldMultiplier);
 }
 
 function addLog(
@@ -232,7 +277,7 @@ function initialState(
   requestedBossIds: BossId | readonly BossId[] = "bulldrome",
   runMode: RunMode = "encounter",
   round = 1,
-  runBuffs: RunBuffId[] = [],
+  runBuffRanks: RunBuffRanks = {},
   gearProgress: GearProgress = createDefaultGearProgress(),
   requestedDifficultySlug: DifficultySlug = "initiate",
 ) {
@@ -248,11 +293,10 @@ function initialState(
   const primary = encounterBosses[0];
   const gearModifiers = createEncounterGearModifiers(gearProgress, healerClassId);
   const passiveInfusionId = passiveInfusionUnlocked(gearProgress) ? gearProgress[healerClassId].passiveInfusionId : null;
-  const effectiveRunBuffs = passiveInfusionId && !runBuffs.includes(passiveInfusionId)
-    ? [passiveInfusionId, ...runBuffs]
-    : runBuffs;
-  const party = applyGearHealth(applyRunBuffsToParty(freshParty(healerClassId, playerName), effectiveRunBuffs), gearModifiers);
-  const maxMana = runMaxMana(effectiveRunBuffs);
+  const runModifiers = compileRunModifiers(runBuffRanks, passiveInfusionId);
+  const draftBuffIds = runMode === "roguelike" ? selectRunBuffDraft(runBuffRanks, passiveInfusionId) : [];
+  const party = applyGearHealth(freshParty(healerClassId, playerName), gearModifiers);
+  const maxMana = 100;
   return {
     bossId: primary.boss.id,
     paused: false,
@@ -262,10 +306,12 @@ function initialState(
     phase: "briefing" as GamePhase,
     runMode,
     round,
-    runBuffs: [...runBuffs],
-    draftBuffIds: [...RUN_BUFF_ORDER],
-    selectedRunBuffId: RUN_BUFF_ORDER[0],
-    healingMultiplier: runHealingMultiplier(effectiveRunBuffs) * gearModifiers.aelia.healingPower,
+    runBuffRanks: { ...runBuffRanks },
+    draftBuffIds,
+    selectedRunBuffId: draftBuffIds[0] ?? null,
+    passiveRunBuffId: passiveInfusionId,
+    runModifiers,
+    healingMultiplier: gearModifiers.aelia.healingPower,
     difficultySlug,
     difficultyDamageMultiplier: difficulty.damageMultiplier,
     gearProgress,
@@ -290,7 +336,7 @@ function initialState(
     scenePulse: { id: 0, kind: "mend" as const },
     playerPosition: [0, 4.5] as [number, number],
     activeCast: null as ActiveCast | null,
-    barrier: { center: [0, 4.5], expiresAt: 0 } as BarrierState,
+    barrier: { center: [0, 4.5], expiresAt: 0, nextHealAt: 0 } as BarrierState,
   };
 }
 
@@ -298,14 +344,14 @@ export const useGameStore = create<GameState>((set, get) => ({
   ...initialState(),
 
   configureHealer: (healerClassId, playerName, inventory, bossIds = "bulldrome", runMode = "encounter", gearProgress = createDefaultGearProgress(), difficultySlug = "initiate") => {
-    set(initialState(healerClassId, playerName, inventory, bossIds, runMode, 1, [], gearProgress, difficultySlug));
+    set(initialState(healerClassId, playerName, inventory, bossIds, runMode, 1, {}, gearProgress, difficultySlug));
   },
 
   startEncounter: () => {
-    const { healerClassId, playerName, inventory, boss, additionalBosses, runMode, round, runBuffs, gearProgress, difficultySlug } = get();
+    const { healerClassId, playerName, inventory, boss, additionalBosses, runMode, round, runBuffRanks, gearProgress, difficultySlug } = get();
     const bossIds = [boss.id, ...additionalBosses.map((entry) => entry.boss.id)];
     set({
-      ...initialState(healerClassId, playerName, inventory, bossIds, runMode, round, runBuffs, gearProgress, difficultySlug),
+      ...initialState(healerClassId, playerName, inventory, bossIds, runMode, round, runBuffRanks, gearProgress, difficultySlug),
       phase: "combat",
       activeTab: "combat",
       combatLog: [{ id: Date.now(), time: 0, message: `${bossIds.map((bossId) => BOSS_DEFINITIONS[bossId].name).join(" and ")} engaged.`, tone: "danger" }],
@@ -314,7 +360,7 @@ export const useGameStore = create<GameState>((set, get) => ({
 
   restart: () => {
     const { healerClassId, playerName, inventory, boss, additionalBosses, runMode, gearProgress, difficultySlug } = get();
-    set(initialState(healerClassId, playerName, inventory, [boss.id, ...additionalBosses.map((entry) => entry.boss.id)], runMode, 1, [], gearProgress, difficultySlug));
+    set(initialState(healerClassId, playerName, inventory, [boss.id, ...additionalBosses.map((entry) => entry.boss.id)], runMode, 1, {}, gearProgress, difficultySlug));
   },
 
   selectMember: (selectedMemberId) => set({ selectedMemberId }),
@@ -341,18 +387,38 @@ export const useGameStore = create<GameState>((set, get) => ({
   chooseRunBuff: (buffId) => {
     const state = get();
     if (state.phase !== "intermission" || !state.draftBuffIds.includes(buffId)) return false;
-    const runBuffs = [...state.runBuffs, buffId];
+    const runBuffRanks = increaseRunBuffRank(state.runBuffRanks, buffId);
     const round = state.round + 1;
     const previousBossIds = [state.boss.id, ...state.additionalBosses.map((entry) => entry.boss.id)];
     const bossIds = selectRandomBossPair(previousBossIds);
+    const abilityName = HEALER_CLASSES[state.healerClassId].abilities[RUN_BUFFS[buffId].abilityId].name;
     set({
-      ...initialState(state.healerClassId, state.playerName, state.inventory, bossIds, "roguelike", round, runBuffs, state.gearProgress, state.difficultySlug),
+      ...initialState(state.healerClassId, state.playerName, state.inventory, bossIds, "roguelike", round, runBuffRanks, state.gearProgress, state.difficultySlug),
       phase: "combat",
       activeTab: "combat",
       combatLog: [{
         id: Date.now(),
         time: 0,
-        message: `${RUN_BUFFS[buffId].name} claimed. Round ${round} begins at ${Math.round(bossHealthMultiplier(round) * 100)}% boss health.`,
+        message: `${abilityName}: ${RUN_BUFFS[buffId].name} claimed. Round ${round} begins at ${Math.round(bossHealthMultiplier(round) * 100)}% boss health.`,
+        tone: "good",
+      }],
+    });
+    return true;
+  },
+  continueRoguelikeRound: () => {
+    const state = get();
+    if (state.phase !== "intermission" || state.draftBuffIds.length > 0) return false;
+    const round = state.round + 1;
+    const previousBossIds = [state.boss.id, ...state.additionalBosses.map((entry) => entry.boss.id)];
+    const bossIds = selectRandomBossPair(previousBossIds);
+    set({
+      ...initialState(state.healerClassId, state.playerName, state.inventory, bossIds, "roguelike", round, state.runBuffRanks, state.gearProgress, state.difficultySlug),
+      phase: "combat",
+      activeTab: "combat",
+      combatLog: [{
+        id: Date.now(),
+        time: 0,
+        message: `All blessings mastered. Round ${round} begins at ${Math.round(bossHealthMultiplier(round) * 100)}% boss health.`,
         tone: "good",
       }],
     });
@@ -381,12 +447,13 @@ export const useGameStore = create<GameState>((set, get) => ({
     if (state.activeCast) return false;
 
     const ability = HEALER_CLASSES[state.healerClassId].abilities[abilityId];
+    const manaCost = runAbilityManaCost(abilityId, ability.mana, state.runModifiers);
     const selectedIndex = state.party.findIndex((member) => member.id === state.selectedMemberId);
     const selected = state.party[selectedIndex];
 
     if (state.cooldowns[abilityId] > state.time + 0.01) return false;
     if (state.globalCooldownUntil > state.time + 0.001) return false;
-    if (state.mana < ability.mana) {
+    if (state.mana < manaCost) {
       set({ combatLog: addLog(state.combatLog, state.time, "Not enough mana.", "danger") });
       return false;
     }
@@ -402,9 +469,9 @@ export const useGameStore = create<GameState>((set, get) => ({
           abilityId: "mend",
           targetId: selected.id,
           startedAt: state.time,
-          completesAt: state.time + (ability.castTime ?? 0.5),
+          completesAt: state.time + runAbilityCastTime("mend", ability.castTime ?? 0.5, state.runModifiers),
         },
-        mana: Math.max(0, state.mana - ability.mana),
+        mana: Math.max(0, state.mana - manaCost),
         globalCooldownUntil: state.time + GLOBAL_COOLDOWN_SECONDS,
         combatLog: addLog(state.combatLog, state.time, `Casting ${ability.name} on ${selected.name}...`),
       });
@@ -419,48 +486,73 @@ export const useGameStore = create<GameState>((set, get) => ({
 
     switch (abilityId) {
       case "renew":
-        party[selectedIndex] = {
-          ...party[selectedIndex],
-          renewExpiresAt: state.time + 8,
-          renewNextTickAt: state.time + 1,
-        };
+        applyRenewAt(party, selectedIndex, state.time, state.runModifiers);
+        for (const index of lowestHealthIndexes(party, selectedIndex, state.runModifiers.renewExtraTargets)) {
+          applyRenewAt(party, index, state.time, state.runModifiers);
+        }
         message = `${ability.name} placed on ${selected.name}.`;
         break;
-      case "shield":
-        party[selectedIndex] = {
-          ...party[selectedIndex],
-          absorb: Math.min(party[selectedIndex].maxHp, party[selectedIndex].absorb + 36 * state.gearModifiers.aelia.healingPower),
-        };
-        message = `${selected.name} gains ${Math.round(36 * state.gearModifiers.aelia.healingPower)} absorption.`;
+      case "shield": {
+        const amount = addHealerAbsorb(party, selectedIndex, 36, state.gearModifiers.aelia.healingPower, state.runModifiers);
+        for (const index of lowestHealthIndexes(party, selectedIndex, state.runModifiers.shieldExtraTargets)) {
+          addHealerAbsorb(party, index, 18, state.gearModifiers.aelia.healingPower, state.runModifiers);
+        }
+        message = `${selected.name} gains ${Math.round(amount)} absorption.`;
         break;
-      case "purify":
-        {
-          const dispelledNames = party[selectedIndex].debuffs.map((debuff) => debuff.name);
-          const primaryDispel = handleBossDispel(state.boss.id, state.bossMotion, selected.id, state.partyPositions[selected.id], state.time, dispelledNames);
+      }
+      case "purify": {
+        const cleanseIndexes = [
+          selectedIndex,
+          ...lowestHealthIndexes(party, selectedIndex, state.runModifiers.purifyExtraTargets, (member) => member.debuffs.length > 0),
+        ];
+        const primaryNames = party[selectedIndex].debuffs.map((debuff) => debuff.name);
+        for (const index of cleanseIndexes) {
+          const target = party[index];
+          const dispelledNames = target.debuffs.map((debuff) => debuff.name);
+          const primaryDispel = handleBossDispel(state.boss.id, bossMotion, target.id, state.partyPositions[target.id], state.time, dispelledNames);
           bossMotion = primaryDispel.motion;
-          additionalBosses = state.additionalBosses.map((entry) => {
-            const dispel = handleBossDispel(entry.boss.id, entry.motion, selected.id, state.partyPositions[selected.id], state.time, dispelledNames);
+          additionalBosses = additionalBosses.map((entry) => {
+            const dispel = handleBossDispel(entry.boss.id, entry.motion, target.id, state.partyPositions[target.id], state.time, dispelledNames);
             return { ...entry, motion: dispel.motion };
           });
-          message = dispelledNames.includes("Widow Venom")
-            ? "Widow Venom purged. A venom pool forms where the target stood."
-            : `${dispelledNames.join(", ") || "Harmful magic"} removed from ${selected.name}.`;
+          party[index] = { ...party[index], debuffs: [] };
+          if (state.runModifiers.purifyAppliesRenew) applyRenewAt(party, index, state.time, state.runModifiers);
+          if (state.runModifiers.purifyAppliesShield) {
+            addHealerAbsorb(party, index, 18, state.gearModifiers.aelia.healingPower, state.runModifiers);
+          }
         }
-        party[selectedIndex] = { ...party[selectedIndex], debuffs: [] };
+        message = primaryNames.includes("Widow Venom")
+          ? "Widow Venom purged. A venom pool forms where the target stood."
+          : `${primaryNames.join(", ") || "Harmful magic"} removed from ${selected.name}.`;
         break;
+      }
       case "radiance":
         party = party.map((member) => healMember(member, 22 * state.healingMultiplier));
+        if (state.runModifiers.radianceAppliesRenew) {
+          for (let index = 0; index < party.length; index += 1) applyRenewAt(party, index, state.time, state.runModifiers);
+        }
+        if (state.runModifiers.radianceAbsorb > 0) {
+          for (let index = 0; index < party.length; index += 1) {
+            addHealerAbsorb(party, index, state.runModifiers.radianceAbsorb, state.gearModifiers.aelia.healingPower, state.runModifiers);
+          }
+        }
         message = `${ability.name} heals the full party.`;
         break;
       case "barrier":
-        barrier = { center: [...state.partyPositions.aelia], expiresAt: state.time + 8 };
-        message = `${ability.name} protects a 3m circle for 8 seconds.`;
+        barrier = {
+          center: [...state.partyPositions.aelia],
+          expiresAt: state.time + 8 + state.runModifiers.barrierDurationBonus,
+          nextHealAt: state.time + 1,
+        };
+        message = `${ability.name} protects a 3m circle for ${8 + state.runModifiers.barrierDurationBonus} seconds.`;
         break;
     }
 
     const cooldowns = {
       ...state.cooldowns,
-      [abilityId]: ability.cooldown > 0 ? state.time + ability.cooldown * state.gearModifiers.aelia.cooldown : 0,
+      [abilityId]: ability.cooldown > 0
+        ? state.time + runAbilityCooldown(abilityId, ability.cooldown, state.runModifiers) * state.gearModifiers.aelia.cooldown
+        : 0,
     };
     const pulse: ScenePulse = {
       id: state.scenePulse.id + 1,
@@ -475,7 +567,7 @@ export const useGameStore = create<GameState>((set, get) => ({
       barrier,
       bossMotion,
       additionalBosses,
-      mana: Math.max(0, state.mana - ability.mana),
+      mana: Math.max(0, state.mana - manaCost),
       combatLog: addLog(state.combatLog, state.time, message, "good"),
       scenePulse: pulse,
     });
@@ -504,7 +596,7 @@ export const useGameStore = create<GameState>((set, get) => ({
     let activeCast = state.activeCast ? { ...state.activeCast } : null;
     let partyCombat = state.partyCombat;
     let partyDamageEvents = state.partyDamageEvents;
-    const barrier = state.barrier;
+    let barrier = { ...state.barrier };
 
     if (activeCast && activeCast.completesAt <= time) {
       const targetIndex = party.findIndex((member) => member.id === activeCast!.targetId);
@@ -512,6 +604,9 @@ export const useGameStore = create<GameState>((set, get) => ({
       if (target?.hp > 0) {
         const healing = 38 * state.healingMultiplier;
         party[targetIndex] = healMember(target, healing);
+        for (const index of lowestHealthIndexes(party, targetIndex, state.runModifiers.mendExtraTargets)) {
+          party[index] = healMember(party[index], healing * 0.5);
+        }
         const abilityName = HEALER_CLASSES[state.healerClassId].abilities.mend.name;
         combatLog = addLog(combatLog, activeCast.completesAt, `${abilityName} restores ${target.name} for ${Math.round(healing)}.`, "good");
         pulse = { id: pulse.id + 1, kind: "mend", targetId: target.id };
@@ -525,7 +620,7 @@ export const useGameStore = create<GameState>((set, get) => ({
         let tickAt = next.renewNextTickAt;
         const lastTickAt = Math.min(time, next.renewExpiresAt);
         while (tickAt <= lastTickAt + 0.001) {
-          next = healMember(next, 7 * state.healingMultiplier);
+          next = healMember(next, 7 * state.healingMultiplier * state.runModifiers.renewHealingMultiplier);
           tickAt += 1;
         }
         next = {
@@ -539,7 +634,7 @@ export const useGameStore = create<GameState>((set, get) => ({
         .map((debuff) => {
           let updated = { ...debuff };
           while (updated.nextTickAt <= time && updated.nextTickAt < updated.expiresAt) {
-            next = damageMemberAt(next, updated.tickDamage, state.partyPositions[next.id], barrier, updated.nextTickAt, partyCombat, state.partyPositions.brann, state.difficultyDamageMultiplier, state.gearModifiers);
+            next = damageMemberAt(next, updated.tickDamage, state.partyPositions[next.id], barrier, updated.nextTickAt, partyCombat, state.partyPositions.brann, state.difficultyDamageMultiplier, state.gearModifiers, "direct", state.runModifiers.shieldDamageTakenMultiplier);
             updated.nextTickAt += 1;
           }
           return updated;
@@ -548,6 +643,17 @@ export const useGameStore = create<GameState>((set, get) => ({
       return { ...next, debuffs: activeDebuffs };
     });
 
+    if (state.runModifiers.barrierHealingPerSecond > 0) {
+      while (barrier.nextHealAt <= time && barrier.nextHealAt < barrier.expiresAt) {
+        const pulseAt = barrier.nextHealAt;
+        const healing = state.runModifiers.barrierHealingPerSecond * state.healingMultiplier;
+        party = party.map((member) => barrierProtects(state.partyPositions[member.id], barrier, pulseAt)
+          ? healMember(member, healing)
+          : member);
+        barrier.nextHealAt += 1;
+      }
+    }
+
     const livingMotions = [
       ...(boss.hp > 0 ? [bossMotion] : []),
       ...additionalBosses.filter((entry) => entry.boss.hp > 0).map((entry) => entry.motion),
@@ -574,8 +680,7 @@ export const useGameStore = create<GameState>((set, get) => ({
         partyPositions,
         time,
         delta: time - oldTime,
-        allowPooledMechanics: encounterBosses.length === 1,
-        damageMember: (member, amount, position, at, kind) => damageMemberAt(member, amount, position, barrier, at, partyCombat, partyPositions.brann, state.difficultyDamageMultiplier, state.gearModifiers, kind),
+        damageMember: (member, amount, position, at, kind) => damageMemberAt(member, amount, position, barrier, at, partyCombat, partyPositions.brann, state.difficultyDamageMultiplier, state.gearModifiers, kind, state.runModifiers.shieldDamageTakenMultiplier),
       });
       encounterBosses[index] = { ...encounterBoss, boss: mechanicResult.boss, motion: constrainBossMotion(mechanicResult.motion) };
       party = mechanicResult.party.map((member) => {
@@ -638,6 +743,7 @@ export const useGameStore = create<GameState>((set, get) => ({
       activeCast,
       combatLog,
       scenePulse: pulse,
+      barrier,
     });
   },
 }));
@@ -658,6 +764,7 @@ export type GameSnapshot = Omit<GameState,
   | "setPauseSelection"
   | "setSelectedRunBuff"
   | "chooseRunBuff"
+  | "continueRoguelikeRound"
 >;
 
 export function getGameSnapshot(): GameSnapshot {
@@ -677,6 +784,7 @@ export function getGameSnapshot(): GameSnapshot {
     setPauseSelection: _setPauseSelection,
     setSelectedRunBuff: _setSelectedRunBuff,
     chooseRunBuff: _chooseRunBuff,
+    continueRoguelikeRound: _continueRoguelikeRound,
     ...snapshot
   } = useGameStore.getState();
   return snapshot;

src/game/types.ts

@@ -28,16 +28,66 @@ export type BossId =
   | "moonfang-wolf"
   | "frostmaw-yeti"
   | "rimeclaw-yeti";
+export type BossMechanicId =
+  | "basic-melee"
+  | "bull-charge"
+  | "crushing-pounce"
+  | "cinder-nova"
+  | "ember-brand"
+  | "binding-web"
+  | "venom-purge"
+  | "storm-breath"
+  | "stormfall"
+  | "elemental-beam"
+  | "guardian-cross"
+  | "destruction-rush"
+  | "ruin-quake"
+  | "destruction-pulse"
+  | "ricochet-rush"
+  | "meteor-slam"
+  | "burrow-rush"
+  | "hourglass-eruption"
+  | "sidewinder-rush"
+  | "crushing-tide"
+  | "vine-scissors"
+  | "haunting-rifts"
+  | "tri-burst"
+  | "ultimate-skyfall"
+  | "meteor-spread"
+  | "hollow-collapse"
+  | "aetheric-soak"
+  | "prism-beam"
+  | "memory-sequence"
+  | "soul-siphon";
+export type BossAnimationCue = "idle" | "move" | "attack" | "special";
 export type GamePhase = "briefing" | "combat" | "intermission" | "victory" | "defeat";
 export type RunMode = "encounter" | "roguelike";
-export type RunBuffId = "vital-bloom" | "deep-wells" | "restoring-grace";
+export type RunBuffId =
+  | "mend-echo"
+  | "mend-efficiency"
+  | "mend-cast-speed"
+  | "renew-spread"
+  | "renew-duration"
+  | "renew-potency"
+  | "shield-echo"
+  | "shield-potency"
+  | "shield-guard"
+  | "purify-renew"
+  | "purify-shield"
+  | "purify-chain"
+  | "radiance-cooldown"
+  | "radiance-renew"
+  | "radiance-shield"
+  | "barrier-cooldown"
+  | "barrier-duration"
+  | "barrier-regen";
+export type RunBuffRanks = Partial<Record<RunBuffId, number>>;
 export type BottomTab = "combat" | "map" | "pack";
 export type PulseKind = AbilityId | "boss" | "debuff" | "charge" | "pounce" | "tether" | "venom" | "breath" | "skyfall" | "slash";
 export type BossMotionMode =
   | "holding"
   | "telegraph"
   | "charging"
-  | "returning"
   | "stacking"
   | "pouncing"
   | "tethering"
@@ -45,35 +95,12 @@ export type BossMotionMode =
   | "breath_telegraph"
   | "breath_sweeping"
   | "skyfall"
-  | "mantis_sidestep"
   | "mantis_line_telegraph"
   | "mantis_cross_telegraph"
-  | "mantis_recover"
-  | "ram_charge_telegraph"
-  | "ram_charging"
-  | "ram_quake"
-  | "ram_shatter"
-  | "ram_recover"
-  | "cinderback_curl"
-  | "cinderback_ricochet"
   | "cinderback_slam"
-  | "cinderback_recover"
-  | "sandglass_burrow_telegraph"
-  | "sandglass_burrowing"
-  | "sandglass_eruption"
   | "sandglass_hourglass"
-  | "sandglass_recover"
-  | "crab_scuttle_telegraph"
-  | "crab_scuttling"
-  | "crab_tidal_burst"
-  | "crab_recover"
-  | "ghost_soul_cross"
-  | "ghost_soul_cross_followup"
-  | "ghost_haunting"
-  | "ghost_recover"
   | "golem_shockwave"
-  | "golem_crownfall"
-  | "golem_recover";
+  | "golem_crownfall";
 export type WorldPosition = [number, number];
 
 export type CircleHazardKind =
@@ -194,13 +221,11 @@ export interface BossState {
   maxHp: number;
   hp: number;
   nextMeleeAt: number;
-  nextNovaAt: number;
-  nextBrandAt: number;
-  brandCount: number;
 }
 
 export interface BossMotionState {
   bossId: BossId;
+  activeMechanicId: BossMechanicId | null;
   formationOffsetX: number;
   mode: BossMotionMode;
   position: WorldPosition;
@@ -209,12 +234,9 @@ export interface BossMotionState {
   chargeTargetId: MemberId;
   chargeHitIds: MemberId[];
   phaseEndsAt: number;
-  nextChargeAt: number;
   chargeCount: number;
-  chargesSincePounce: number;
   pounceTargetId: MemberId;
   pounceCenter: WorldPosition;
-  pounceCount: number;
   nextMechanicAt: number;
   mechanicCount: number;
   phaseStartedAt: number;
@@ -227,7 +249,6 @@ export interface BossMotionState {
   breathEndAngle: number;
   hazards: CircleHazard[];
   slashLanes: SlashLane[];
-  nextPoolMechanicAt: number;
   poolMechanicCount: number;
   poolTelegraphs: PoolTelegraph[];
 }
@@ -257,6 +278,7 @@ export interface ActiveCast {
 export interface BarrierState {
   center: WorldPosition;
   expiresAt: number;
+  nextHealAt: number;
 }
 
 export interface ScenePulse {

src/game/useGameLoop.ts

@@ -6,7 +6,8 @@ import type { AbilityId } from "./types";
 
 function cycleRunBuff(direction: 1 | -1) {
   const store = useGameStore.getState();
-  const currentIndex = store.draftBuffIds.indexOf(store.selectedRunBuffId);
+  if (store.draftBuffIds.length === 0) return;
+  const currentIndex = store.selectedRunBuffId ? store.draftBuffIds.indexOf(store.selectedRunBuffId) : -1;
   const nextIndex = (Math.max(0, currentIndex) + direction + store.draftBuffIds.length) % store.draftBuffIds.length;
   store.setSelectedRunBuff(store.draftBuffIds[nextIndex]);
 }
@@ -44,7 +45,10 @@ export function useActionBindings(enabled = true, onExit?: () => void) {
         if (["arrowleft", "arrowup", "arrowright", "arrowdown", "enter"].includes(key)) event.preventDefault();
         if (key === "arrowleft" || key === "arrowup") cycleRunBuff(-1);
         if (key === "arrowright" || key === "arrowdown") cycleRunBuff(1);
-        if (key === "enter") store.chooseRunBuff(store.selectedRunBuffId);
+        if (key === "enter") {
+          if (store.selectedRunBuffId) store.chooseRunBuff(store.selectedRunBuffId);
+          else store.continueRoguelikeRound();
+        }
         if (key === "escape") exitRef.current?.();
         return;
       }
@@ -97,7 +101,10 @@ export function useActionBindings(enabled = true, onExit?: () => void) {
     if (store.phase === "intermission") {
       if (["Button12", "Button14", "Axis0-", "Axis1-"].includes(token)) cycleRunBuff(-1);
       if (["Button13", "Button15", "Axis0+", "Axis1+"].includes(token)) cycleRunBuff(1);
-      if (!repeat && token === "Button0") store.chooseRunBuff(store.selectedRunBuffId);
+      if (!repeat && token === "Button0") {
+        if (store.selectedRunBuffId) store.chooseRunBuff(store.selectedRunBuffId);
+        else store.continueRoguelikeRound();
+      }
       if (!repeat && token === "Button1") exitRef.current?.();
       return;
     }

src/platform/BottomDisplayApp.tsx

@@ -122,6 +122,8 @@ export function BottomDisplayApp() {
       selectGearSlot: (slotId) => postFrontend({ name: "selectGearSlot", slotId }),
       selectGearWorkshopMode: (mode) => postFrontend({ name: "selectGearWorkshopMode", mode }),
       selectInfusion: (infusionId) => postFrontend({ name: "selectInfusion", infusionId }),
+      selectPassiveAbility: (abilityId) => postFrontend({ name: "selectPassiveAbility", abilityId }),
+      selectPassiveInfusion: (passiveId) => postFrontend({ name: "selectPassiveInfusion", passiveId }),
       upgradeSelectedGear: () => {
         postFrontend({ name: "upgradeSelectedGear" });
         return false;
@@ -155,6 +157,10 @@ export function BottomDisplayApp() {
         postCommand({ name: "chooseRunBuff", buffId });
         return false;
       },
+      continueRoguelikeRound: () => {
+        postCommand({ name: "continueRoguelikeRound" });
+        return false;
+      },
     });
     channel.onmessage = (event: MessageEvent<DualScreenMessage>) => {
       if (event.data.type === "authoritative-ready") {

src/platform/dualScreenSync.test.ts

@@ -1,5 +1,7 @@
 import { describe, expect, it } from "vitest";
-import { diffBottomGameSnapshot, type BottomGameSnapshot } from "./dualScreenSync";
+import { diffBottomGameSnapshot, executeFrontendCommand, executeGameCommand, type BottomGameSnapshot } from "./dualScreenSync";
+import { useGameStore } from "../game/store";
+import { useFrontendStore } from "../frontend/store";
 
 function snapshot(): BottomGameSnapshot {
   return {
@@ -8,16 +10,24 @@ function snapshot(): BottomGameSnapshot {
     healerClassId: "priest",
     phase: "combat",
     round: 1,
+    runModifiers: {
+      mendExtraTargets: 0, mendManaMultiplier: 1, mendCastTimeMultiplier: 1,
+      renewExtraTargets: 0, renewDurationBonus: 0, renewHealingMultiplier: 1,
+      shieldExtraTargets: 0, shieldAbsorbMultiplier: 1, shieldDamageTakenMultiplier: 1,
+      purifyAppliesRenew: false, purifyAppliesShield: false, purifyExtraTargets: 0,
+      radianceCooldownMultiplier: 1, radianceAppliesRenew: false, radianceAbsorb: 0,
+      barrierCooldownMultiplier: 1, barrierDurationBonus: 0, barrierHealingPerSecond: 0,
+    },
     time: 10,
     party: [],
-    boss: { id: "bulldrome", name: "Bulldrome", maxHp: 100, hp: 100, nextMeleeAt: 1, nextNovaAt: Infinity, nextBrandAt: Infinity, brandCount: 0 },
+    boss: { id: "bulldrome", name: "Bulldrome", maxHp: 100, hp: 100, nextMeleeAt: 1 },
     additionalBosses: [],
     partyPositions: { aelia: [0, 0], brann: [0, 0], nia: [0, 0], orin: [0, 0], vale: [0, 0] },
     bossMotion: {
-      bossId: "bulldrome", formationOffsetX: 0, mode: "holding", position: [0, 0], chargeStart: [0, 0], chargeEnd: [0, 0], chargeTargetId: "aelia", chargeHitIds: [], phaseEndsAt: 0,
-      nextChargeAt: Infinity, chargeCount: 0, chargesSincePounce: 0, pounceTargetId: "aelia", pounceCenter: [0, 0], pounceCount: 0,
+      bossId: "bulldrome", activeMechanicId: null, formationOffsetX: 0, mode: "holding", position: [0, 0], chargeStart: [0, 0], chargeEnd: [0, 0], chargeTargetId: "aelia", chargeHitIds: [], phaseEndsAt: 0,
+      chargeCount: 0, pounceTargetId: "aelia", pounceCenter: [0, 0],
       nextMechanicAt: Infinity, mechanicCount: 0, phaseStartedAt: 0, mechanicHitIds: [], mechanicNextDamageAt: {}, tetherIds: [], tetherBreakDistance: 0,
-      breathAngle: 0, breathStartAngle: 0, breathEndAngle: 0, hazards: [], slashLanes: [], nextPoolMechanicAt: Infinity, poolMechanicCount: 0, poolTelegraphs: [],
+      breathAngle: 0, breathStartAngle: 0, breathEndAngle: 0, hazards: [], slashLanes: [], poolMechanicCount: 0, poolTelegraphs: [],
     },
     partyCombat: {
       combatants: {
@@ -39,7 +49,7 @@ function snapshot(): BottomGameSnapshot {
     inventory: [],
     playerPosition: [0, 0],
     activeCast: null,
-    barrier: { center: [0, 0], expiresAt: 0 },
+    barrier: { center: [0, 0], expiresAt: 0, nextHealAt: 0 },
   };
 }
 
@@ -54,4 +64,24 @@ describe("dual-screen game snapshots", () => {
     const next = { ...clonedWithoutChanges, time: 10.1, mana: 97 };
     expect(diffBottomGameSnapshot(clonedWithoutChanges, next)).toEqual({ time: 10.1, mana: 97 });
   });
+
+  it("routes maxed-run continuation and passive filter commands", () => {
+    const originalContinue = useGameStore.getState().continueRoguelikeRound;
+    const originalSelectAbility = useFrontendStore.getState().selectPassiveAbility;
+    const originalSelectPassive = useFrontendStore.getState().selectPassiveInfusion;
+    const calls: string[] = [];
+    useGameStore.setState({ continueRoguelikeRound: () => { calls.push("continue"); return true; } });
+    useFrontendStore.setState({
+      selectPassiveAbility: (abilityId) => { calls.push(`ability:${abilityId}`); },
+      selectPassiveInfusion: (passiveId) => { calls.push(`passive:${passiveId}`); },
+    });
+
+    executeGameCommand({ name: "continueRoguelikeRound" });
+    executeFrontendCommand({ name: "selectPassiveAbility", abilityId: "shield" });
+    executeFrontendCommand({ name: "selectPassiveInfusion", passiveId: "shield-guard" });
+    expect(calls).toEqual(["continue", "ability:shield", "passive:shield-guard"]);
+
+    useGameStore.setState({ continueRoguelikeRound: originalContinue });
+    useFrontendStore.setState({ selectPassiveAbility: originalSelectAbility, selectPassiveInfusion: originalSelectPassive });
+  });
 });

src/platform/dualScreenSync.ts

@@ -22,7 +22,8 @@ export type GameCommand =
   | { name: "setPaused"; paused: boolean }
   | { name: "setPauseSelection"; selection: "resume" | "exit" }
   | { name: "setSelectedRunBuff"; buffId: RunBuffId }
-  | { name: "chooseRunBuff"; buffId: RunBuffId };
+  | { name: "chooseRunBuff"; buffId: RunBuffId }
+  | { name: "continueRoguelikeRound" };
 
 export type FrontendCommand =
   | { name: "signIn"; username: string; password: string }
@@ -44,6 +45,8 @@ export type FrontendCommand =
   | { name: "selectGearSlot"; slotId: GearSlotId }
   | { name: "selectGearWorkshopMode"; mode: "upgrade" | "infusion" }
   | { name: "selectInfusion"; infusionId: string }
+  | { name: "selectPassiveAbility"; abilityId: AbilityId }
+  | { name: "selectPassiveInfusion"; passiveId: RunBuffId }
   | { name: "upgradeSelectedGear" }
   | { name: "equipSelectedInfusion" }
   | { name: "equipPassiveInfusion"; passiveId: RunBuffId }
@@ -82,6 +85,7 @@ export function executeGameCommand(command: GameCommand) {
     case "setPauseSelection": game.setPauseSelection(command.selection); break;
     case "setSelectedRunBuff": game.setSelectedRunBuff(command.buffId); break;
     case "chooseRunBuff": game.chooseRunBuff(command.buffId); break;
+    case "continueRoguelikeRound": game.continueRoguelikeRound(); break;
   }
 }
 
@@ -107,6 +111,8 @@ export function executeFrontendCommand(command: FrontendCommand) {
     case "selectGearSlot": frontend.selectGearSlot(command.slotId); break;
     case "selectGearWorkshopMode": frontend.selectGearWorkshopMode(command.mode); break;
     case "selectInfusion": frontend.selectInfusion(command.infusionId); break;
+    case "selectPassiveAbility": frontend.selectPassiveAbility(command.abilityId); break;
+    case "selectPassiveInfusion": frontend.selectPassiveInfusion(command.passiveId); break;
     case "upgradeSelectedGear": frontend.upgradeSelectedGear(); break;
     case "equipSelectedInfusion": frontend.equipSelectedInfusion(); break;
     case "equipPassiveInfusion": frontend.equipPassiveInfusion(command.passiveId); break;
@@ -130,6 +136,7 @@ export type BottomGameSnapshot = Pick<GameState,
   | "healerClassId"
   | "phase"
   | "round"
+  | "runModifiers"
   | "time"
   | "party"
   | "boss"
@@ -151,7 +158,7 @@ export type BottomGameSnapshot = Pick<GameState,
 >;
 
 const BOTTOM_GAME_SNAPSHOT_KEYS: readonly (keyof BottomGameSnapshot)[] = [
-  "bossId", "paused", "healerClassId", "phase", "round", "time", "party", "boss", "additionalBosses",
+  "bossId", "paused", "healerClassId", "phase", "round", "runModifiers", "time", "party", "boss", "additionalBosses",
   "partyPositions", "bossMotion", "partyCombat", "mana", "maxMana", "selectedMemberId", "cooldowns",
   "globalCooldownUntil", "activeTab", "selectedItemId", "inventory", "playerPosition", "activeCast", "barrier",
 ];
@@ -181,6 +188,7 @@ export function currentBottomGameSnapshot(): BottomGameSnapshot {
     healerClassId: state.healerClassId,
     phase: state.phase,
     round: state.round,
+    runModifiers: state.runModifiers,
     time: state.time,
     party: state.party,
     boss: state.boss,

src/styles.css

@@ -1117,6 +1117,8 @@ button:focus-visible {
 .buff-draft > header h2 { margin: 2px 0; font-family: "Cinzel", serif; font-size: clamp(18px, 4.2cqw, 26px); font-weight: 500; }
 .buff-draft > header p { margin: 0; color: #81958d; font-size: clamp(8px, 1.7cqw, 10px); }
 .buff-choice-grid { min-height: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.5%; }
+.buff-choice-grid.choice-count-1 { grid-template-columns: minmax(0, 360px); justify-content: center; }
+.buff-choice-grid.choice-count-2 { width: min(640px, 100%); grid-template-columns: repeat(2, minmax(0, 1fr)); justify-self: center; }
 .buff-choice-grid button {
   min-width: 0;
   display: grid;
@@ -1138,6 +1140,7 @@ button:focus-visible {
 .buff-choice-grid button strong { overflow: hidden; font-family: "Cinzel", serif; font-size: clamp(9px, 2cqw, 12px); text-overflow: ellipsis; white-space: nowrap; }
 .buff-choice-grid button > b { grid-column: 1 / -1; color: #edf5f1; font-size: clamp(8px, 1.7cqw, 10px); }
 .buff-choice-grid button > p { grid-column: 1 / -1; margin: 0; color: #71867e; font-size: clamp(7px, 1.45cqw, 9px); line-height: 1.25; }
+.buff-choice-grid .buff-mastery-continue { grid-column: 1 / -1; width: min(420px, 100%); justify-self: center; align-self: center; }
 .buff-draft > footer { display: flex; align-items: center; justify-content: center; gap: 7px; color: #6e827a; font-size: 7px; letter-spacing: 0.08em; text-transform: uppercase; }
 .buff-draft > footer b { color: #dce8e3; }
 .buff-draft > footer i { width: 2px; height: 2px; border-radius: 50%; background: var(--gold); }
@@ -1908,7 +1911,18 @@ button:focus-visible {
 .boss-picker-heading > div { display: flex; gap: 4px; }
 .boss-picker-heading button { min-width: 72px; padding: 2px 6px; border: 1px solid var(--line); color: #a9bbb4; background: rgba(6,18,16,0.82); font-size: 7px; text-transform: uppercase; }
 .boss-picker-heading button:disabled { opacity: 0.32; }
-.boss-choice-grid { display: grid; grid-template-columns: repeat(var(--boss-grid-columns), minmax(0, 1fr)); grid-template-rows: repeat(var(--boss-grid-rows), minmax(40px, auto)); grid-auto-flow: column; gap: 4px; }
+.boss-group-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 4px; }
+.boss-group-choice { min-height: 30px; display: grid; grid-template-columns: 20px minmax(0, 1fr); align-items: center; gap: 5px; padding: 4px 6px; border: 1px solid var(--line); color: #9db2aa; background: rgba(6,18,16,0.82); text-align: left; }
+.boss-group-choice > b { display: grid; width: 19px; height: 19px; place-items: center; border: 1px solid #527066; border-radius: 50%; color: var(--gold); font-family: "Cinzel", serif; font-size: 9px; }
+.boss-group-choice > span { display: grid; min-width: 0; }
+.boss-group-choice strong { font-size: 7px; }
+.boss-group-choice small { overflow: hidden; color: #6f867d; font-size: 6px; text-overflow: ellipsis; white-space: nowrap; }
+.boss-group-choice.is-selected { border-color: var(--gold); background: rgba(87,69,25,0.22); color: #e8d68d; }
+.boss-group-choice.is-selected > b { border-color: var(--gold); background: rgba(232,200,114,0.14); }
+.boss-group-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; padding-top: 3px; color: #d6e3de; }
+.boss-group-heading > span { font-family: "Cinzel", serif; font-size: 10px; }
+.boss-group-heading > small { color: #71867e; font-size: 7px; text-transform: uppercase; }
+.boss-choice-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px; }
 .boss-choice { min-height: 40px; display: grid; grid-template-columns: 26px 1fr 14px; align-items: center; gap: 7px; padding: 5px 8px; border: 1px solid var(--line); color: #dce8e3; background: rgba(6,18,16,0.82); text-align: left; }
 .boss-choice > i { width: 24px; height: 24px; display: grid; place-items: center; border: 1px solid color-mix(in srgb, var(--boss-accent) 55%, transparent); border-radius: 50%; color: var(--boss-accent); font-size: 11px; font-style: normal; }
 .boss-choice > span { display: grid; min-width: 0; }
@@ -2058,7 +2072,15 @@ button:focus-visible {
   .mode-hero p { font-size: 7px; }
   .mode-hero > span, .mode-hero > b { margin-top: 4px; font-size: 5px; }
   .boss-picker { top: 54px; right: 14px; left: 14px; gap: 3px; }
-  .boss-choice-grid { grid-template-rows: repeat(var(--boss-grid-rows), minmax(27px, auto)); gap: 3px; }
+  .boss-group-grid { gap: 3px; }
+  .boss-group-choice { min-height: 23px; grid-template-columns: 16px minmax(0, 1fr); gap: 3px; padding: 2px 3px; }
+  .boss-group-choice > b { width: 15px; height: 15px; font-size: 6px; }
+  .boss-group-choice strong { font-size: 5px; }
+  .boss-group-choice small { font-size: 4px; }
+  .boss-group-heading { padding-top: 1px; }
+  .boss-group-heading > span { font-size: 7px; }
+  .boss-group-heading > small { font-size: 4px; }
+  .boss-choice-grid { gap: 3px; }
   .boss-picker-heading { min-height: 11px; }
   .boss-picker-heading > span { font-size: 4px; }
   .boss-picker-heading button { min-width: 42px; padding: 1px 3px; font-size: 4px; }
@@ -2101,7 +2123,7 @@ button:focus-visible {
 .gear-mode-tabs { display: flex; gap: 4px; }
 .gear-mode-tabs button { padding: 6px 8px; color: #7f958c; font-size: 7px; font-weight: 700; text-transform: uppercase; }
 .gear-mode-tabs button.is-selected { border-color: var(--gold); color: var(--gold-strong); background: rgba(72,58,21,.2); }
-.gear-workshop-layout { height: calc(100% - 91px); display: grid; grid-template-columns: 190px 220px 1fr; gap: 11px; padding-top: 12px; }
+.gear-workshop-layout { box-sizing: border-box; height: calc(100% - 91px); display: grid; grid-template-columns: 190px 220px 1fr; gap: 11px; padding-top: 12px; }
 .gear-owner-list,
 .gear-slot-list { display: grid; align-content: start; gap: 5px; }
 .gear-owner-list button,
@@ -2132,23 +2154,27 @@ button:focus-visible {
 .gear-infusion-options,
 .gear-passive-options { display: grid; gap: 4px; margin-top: 9px; }
 .gear-infusion-options button,
-.gear-passive-options button { min-height: 39px; display: grid; grid-template-columns: 24px 1fr 12px; align-items: center; gap: 6px; padding: 4px 6px; text-align: left; }
+.gear-passive-choice-list button { min-height: 39px; display: grid; grid-template-columns: 24px 1fr 12px; align-items: center; gap: 6px; padding: 4px 6px; text-align: left; }
 .gear-infusion-options button > i,
-.gear-passive-options button > i { color: #8fc4b1; font-size: 12px; font-style: normal; text-align: center; }
+.gear-passive-choice-list button > i { color: #8fc4b1; font-size: 12px; font-style: normal; text-align: center; }
 .gear-infusion-options button > span,
-.gear-passive-options button > span { min-width: 0; display: grid; }
+.gear-passive-choice-list button > span { min-width: 0; display: grid; }
 .gear-infusion-options button strong,
-.gear-passive-options button strong { overflow: hidden; color: #dbe8e3; font-size: 7px; text-overflow: ellipsis; white-space: nowrap; }
+.gear-passive-choice-list button strong { overflow: hidden; color: #dbe8e3; font-size: 7px; text-overflow: ellipsis; white-space: nowrap; }
 .gear-infusion-options button small,
-.gear-passive-options button small { overflow: hidden; color: #71867e; font-size: 5px; text-overflow: ellipsis; white-space: nowrap; }
+.gear-passive-choice-list button small { overflow: hidden; color: #71867e; font-size: 5px; text-overflow: ellipsis; white-space: nowrap; }
 .gear-infusion-options button > b,
-.gear-passive-options button > b { color: var(--gold); font-size: 9px; }
+.gear-passive-choice-list button > b { color: var(--gold); font-size: 9px; }
 .gear-infusion-options button.is-selected { border-color: var(--gold); background: rgba(72,58,21,.16); }
 .gear-infusion-options button.is-equipped,
-.gear-passive-options button.is-equipped { box-shadow: inset 3px 0 #67c89e; }
-.gear-passive-options { grid-template-columns: repeat(3, minmax(0, 1fr)); }
-.gear-passive-options > span { grid-column: 1 / -1; color: #71867e; font-size: 5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
-.gear-passive-options button { min-width: 0; grid-template-columns: 18px 1fr 10px; }
+.gear-passive-choice-list button.is-equipped { box-shadow: inset 3px 0 #67c89e; }
+.gear-passive-options > span { color: #71867e; font-size: 5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
+.gear-passive-ability-filter { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 3px; }
+.gear-passive-ability-filter button { min-width: 0; min-height: 22px; padding: 2px 4px; color: #829890; font-size: 6px; }
+.gear-passive-ability-filter button.is-selected { border-color: var(--gold); color: var(--gold-strong); background: rgba(72,58,21,.16); }
+.gear-passive-choice-list { display: grid; gap: 3px; }
+.gear-passive-choice-list button { min-width: 0; grid-template-columns: 18px 1fr 10px; }
+.gear-passive-choice-list button.is-selected { border-color: #70b99d; background: rgba(46,103,81,.14); }
 
 .gear-context { padding: 0 5.5% 18px; }
 .gear-context .context-header { margin: 0 -5.8%; }
@@ -2165,6 +2191,44 @@ button:focus-visible {
 .gear-upgrade-action:disabled { border-color: #42554e; color: #71827c; background: #13201c; }
 .gear-upgrade-action span { font: 600 clamp(10px, 2.3cqw, 14px) "Cinzel", serif; }
 .gear-upgrade-action small { font-size: clamp(6px, 1.35cqw, 8px); }
+.gear-passive-context-action { position: absolute; right: 5.5%; bottom: 57px; left: 5.5%; min-height: 56px; display: grid; align-content: center; padding: 9px 13px; border: 1px solid #67c89e; color: #dce8e3; background: rgba(20,55,43,.72); }
+.gear-passive-context-action span { font: 600 clamp(10px, 2.3cqw, 14px) "Cinzel", serif; }
+.gear-passive-context-action small { color: #8aa198; font-size: clamp(6px, 1.35cqw, 8px); }
+
+@media (min-width: 761px) and (max-width: 1000px) and (max-height: 650px) {
+  .gear-surface { padding: 0 12px; }
+  .gear-surface .front-screen-header { grid-template-columns: 125px minmax(0, 1fr) auto auto; }
+  .gear-mode-tabs { gap: 2px; }
+  .gear-mode-tabs button { padding: 3px 4px; font-size: 4px; }
+  .gear-workshop-layout { height: calc(100% - 81px); grid-template-columns: 27% 31% 1fr; gap: 4px; padding-top: 5px; }
+  .gear-owner-list,
+  .gear-slot-list { gap: 2px; }
+  .gear-owner-list button,
+  .gear-slot-list button { min-height: 27px; gap: 3px; padding: 2px 4px; }
+  .gear-slot-list button { grid-template-columns: 16px 1fr 17px; }
+  .gear-owner-list strong,
+  .gear-slot-list strong { font-size: 5px; }
+  .gear-owner-list small,
+  .gear-slot-list small { font-size: 4px; }
+  .gear-slot-list button > i { width: 14px; height: 14px; font-size: 6px; }
+  .gear-preview { padding: 6px; }
+  .gear-preview h2 { margin: 3px 0; font-size: 8px; }
+  .gear-preview p { font-size: 5px; }
+  .gear-preview > span { font-size: 4px; }
+  .gear-infusion-options,
+  .gear-passive-options { gap: 2px; margin-top: 3px; }
+  .gear-infusion-options button,
+  .gear-passive-choice-list button { min-height: 25px; grid-template-columns: 12px 1fr 8px; gap: 2px; padding: 2px 3px; }
+  .gear-infusion-options button > i,
+  .gear-passive-choice-list button > i { font-size: 6px; }
+  .gear-infusion-options button strong,
+  .gear-passive-choice-list button strong { font-size: 4px; }
+  .gear-infusion-options button small,
+  .gear-passive-choice-list button small,
+  .gear-passive-options > span { font-size: 3px; }
+  .gear-passive-ability-filter { gap: 2px; }
+  .gear-passive-ability-filter button { min-height: 14px; padding: 1px 2px; font-size: 3px; }
+}
 
 .reward-summary { display: grid; gap: 4px; margin: 8px 0; }
 .reward-summary > span { padding: 5px 7px; border: 1px solid rgba(232,200,114,.25); color: #dbe8e3; background: rgba(68,54,18,.17); font-size: 8px; }
@@ -2191,7 +2255,13 @@ button:focus-visible {
   .difficulty-picker > span { font-size: 4px; }
   .mode-dungeons .mode-hero { display: none; }
   .mode-dungeons .boss-picker { top: 49px; right: 12px; left: 12px; width: auto; gap: 2px; }
-  .mode-dungeons .boss-choice-grid { gap: 2px; }
+  .mode-dungeons .boss-group-grid, .mode-dungeons .boss-choice-grid { gap: 2px; }
+  .mode-dungeons .boss-group-choice { min-height: 22px; grid-template-columns: 15px minmax(0, 1fr); gap: 2px; padding: 2px; }
+  .mode-dungeons .boss-group-choice > b { width: 14px; height: 14px; font-size: 6px; }
+  .mode-dungeons .boss-group-choice strong { font-size: 5px; }
+  .mode-dungeons .boss-group-choice small { display: none; }
+  .mode-dungeons .boss-group-heading > span { font-size: 6px; }
+  .mode-dungeons .boss-group-heading > small { font-size: 4px; }
   .mode-dungeons .boss-choice { min-width: 0; min-height: 27px; grid-template-columns: 15px 1fr 7px; gap: 2px; padding: 2px 3px; }
   .mode-dungeons .boss-choice > i { width: 14px; height: 14px; font-size: 6px; }
   .mode-dungeons .boss-choice strong { overflow: hidden; font-size: 5px; text-overflow: ellipsis; white-space: nowrap; }
@@ -2224,12 +2294,14 @@ button:focus-visible {
   .gear-infusion-options,
   .gear-passive-options { gap: 2px; margin-top: 3px; }
   .gear-infusion-options button,
-  .gear-passive-options button { min-height: 25px; grid-template-columns: 12px 1fr 8px; gap: 2px; padding: 2px 3px; }
+  .gear-passive-choice-list button { min-height: 25px; grid-template-columns: 12px 1fr 8px; gap: 2px; padding: 2px 3px; }
   .gear-infusion-options button > i,
-  .gear-passive-options button > i { font-size: 6px; }
+  .gear-passive-choice-list button > i { font-size: 6px; }
   .gear-infusion-options button strong,
-  .gear-passive-options button strong { font-size: 4px; }
+  .gear-passive-choice-list button strong { font-size: 4px; }
   .gear-infusion-options button small,
-  .gear-passive-options button small,
+  .gear-passive-choice-list button small,
   .gear-passive-options > span { font-size: 3px; }
+  .gear-passive-ability-filter { gap: 2px; }
+  .gear-passive-ability-filter button { min-height: 14px; padding: 1px 2px; font-size: 3px; }
 }