Reading about it on Reddit, it sounds pretty straight forward.
Tank perspective sounds simple enough.
Stack with party for Aoe-cleave, kinda like with Hydra.
Dodge another Aoe like Slipstream, Tank swap.
Looks like the real challenge is that her mechanics change depending on what weapon she has drawn, so observing and adjusting is going to be the challenge. Shouldn't be as chaotic as Ramuh could get though.