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docs/ROM_BLOOD_ARROW_SCALING_2026-10-04.md

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+# Blood Arrow scaling source audit — 2026-10-04
+
+## Result
+
+The current Chronicles of Arcadia sources do not establish Blood Arrow's
+damage bonus at skill level 80. Keep the imported 10% modifier as the existing
+simulator value until current rank data or an explicit formula is available.
+Do not derive the cap-80 value from the published level-105 tooltip.
+
+## Current source evidence
+
+- [Current Scout/Rogue skill list](https://chroniclesofarcadia.com/wiki/skills/list/2-3?locale=en)
+  identifies Scout General Blood Arrow as skill `490434`. Its tooltip shows
+  `+105`, says the skill's maximum level is 105, and reports a 104.5% ranged
+  damage increase at that rank. It also describes the 2% HP ranged-attack cost
+  and 10-second cooldown after deactivation.
+- [Current Knight/Scout skill list](https://chroniclesofarcadia.com/wiki/skills/list/6-2?locale=en)
+  identifies Blood Arrow as the distinct skill `499924`. Its `+105` tooltip
+  likewise reports 104.5% ranged damage and a maximum skill level of 105; it
+  additionally reports 2% HP and 1% MP per offensive ranged-weapon skill, +5%
+  Light Damage, and +15% received healing.
+
+These current pages provide one numeric endpoint per identity: skill level 105.
+They expose no lower-rank points, rank table, progression formula, API payload,
+or raw current CoA source record. The game's level-80 character cap does not
+identify what Blood Arrow value belongs at that cap. One level-105 endpoint
+cannot establish a level-80 value or curve.
+
+## Local RuneWaker boundary
+
+The checked-in `src/game/romPlayerCatalog.generated.json` maps the imported
+Scout General row `490434` to `rom-scout-general-4`. It contains one rank,
+learned at character level 12. Its source component `500871` has ability
+modifier type 52 (`ranged-damage`) with value 10. The row also retains the old
+30-second duration and 3% per-second HP loss. The exporter
+`scripts/runewaker-pipeline/export-player-catalog.mjs` resolves these
+`MagicCollect` / `MagicObject` records from the local RuneWaker client
+snapshot. This is evidence for the legacy imported 10% value and its stale
+behavior, not a current CoA lower-rank curve.
+
+Current verified pair mapping is owner-scoped in code: Scout/Rogue uses CoA
+source skill `490434`; Knight/Scout uses CoA source skill `499924`, which the
+local imported row represents as `490434`. Other owners retain the local
+legacy import. Since no current CoA level-80 curve is available, this audit
+does not change the catalog's existing 10% ranged-damage modifier for any
+owner.
+
+## Evidence still needed
+
+To replace the retained value safely, obtain at least one independently
+verifiable current CoA rank point at or below level 80 plus enough matching
+rank points or an explicit formula to determine the progression. The evidence
+must distinguish Scout/Rogue `490434` from Knight/Scout `499924`, or explicitly
+show that their rank curves are shared. A current raw source/API record is
+preferred; historical RuneWaker data and the level-105 tooltip alone are
+insufficient.
+
+The direct official `/wiki/...?...locale=en` skill-list URLs above resolve.
+The alternate `/en/wiki/...` path may fail and is not the citation used here.