Yes, I know it has ridiculous debuff resistance. The question is, what can you actually do about it?
sanahtlig gave at least a partial answer - using strong buffs (equal to a whopping three Hime in the game), building a team around around double full burst in as few turns as possible, using a Berserk build (built around Morgan I suppose) for a quick spike damage. But if that's enough - why can't you do that in Water?