>>536323651
The trick to them is always filling up on damage negation passives. Negation at full hp, low fp, whatever element the boss does. Raises poise and damage negation after getting knocked down helps too. Then that's it really. You'll never be 1 shot. I was playing Rev on gigadogs and I wasn't dying thanks to all that.
Damage negation passives, invest into FP, spam incants, win.