If you can't, but can manage to manipulate her, do that. Razzy, in general, is not a hard person to trick, Poltergeist isn't gonna be better, it just takes finding out the best course for her mindset at the time.
And if not those...then Tide would be the one most likely to fight her and do damage, with his abilities. Cobra won't die, and Poltergeist has the bulk of the daddy rage, so he'd be second. Otherwise, use magic. Magic is going to be more affective than normal attacks.