Talk:Frau/@comment-118.70.131.140-20151013014329/@comment-26600784-20151013041340

They're entirely different.

Vienta increases the stats of your party while in subparty, You'll need her for the raw stat boost. She'll be better on most cases.

Frau slows down mana reel. Her stat bonus doesn't work when she's in subparty. She helps a lot on raids since you can pick the mana you need and her skill increases the ATK of your party.