Boss gives healing down debuff on drk, proceeds to buster him.
Tank pops living dead. Non whms spamming their CDs trying to hit that threshold but because of the healing debuff they have to spam even more. T5 comes to mind when twin gives u tht debuff ( red thingy ). All a whm has to do is pop benediction lol, no mp wasted xD.
Or like ramuh ex healing debuff.