Clarification request on Truath's Passive - Transmute Pain
This weekend, I was lucky (or not) enough to pull Truath from ancient shards. I figured he looked interesting, and might help me clear out some levels in Dark Elf faction wars. I did 3* ascension to unlock the passive, and the wording doesn't seem to match up with my expectations. To me, the passive (Transmute Pain) reads decrease the cooldown of Animus Infusion (A3) for every 10% of HP lost. That would mean if he loses 10%, it's -1 turn. 20% would be -2, and 30%+ would be -3 turns. It seems to be a max of 1 turn cooldown. The first seems like an amazing skill, while the second seems like I should stop wasting my time with him.
Is this a wording issue and the passive is capped at 1 turn decrease per hit, or did I miss something with my limited testing so far?