Despair at rank 3 states that debuffs applied reduce healing and regeneration by 15% each. That means at 7 debuffs the reduction should be 105%, or zero health gain. While fighting with invisible woman in arena, I had applied 20 vulnerability debuffs on the defender, yet their willpower still gained health. I was not able to get a screenshot of that fight, however, I did get one from a cull obsidian fight with 9 debuffs and the defender still gaining health from willpower. Please fix so that this mastery works correctly, and can stop regen\health gain like stated.