The problems is we gonna get which verson of her. She has 2 different version, I don't know if I can put a video link about other version here because the last time I did it the thread got downed by Mod since Oas don't want players to discuss about other version here.
So I'll make it short.
Version 1 : Have battlefield CD, video link watch?v=IzxoFBgQgtY
Version 2 : Don't have battlefield CD, video link watch?v=WEviWADpELE
Get her or not is depend on which version, if they sell us the version don't have battlefield cd I'd get her to 3 stars. Otherwise 2 stars is enough This post was last edited by Kouka at 2016-10-24 18:10

Add these link after youtube.com/ and you can see her in action for yourself. She can deal half of your team hp in round 1 if you play her right and only if they sell that version of her to us.
Her mystery is very strong but it require 60 chakra and there is a version of her which has battlefield cd. It's mean normally u will have to wait till turn 3 to use it. She is squishy and can be burst to dead before that happen.
That why I said it's depend on which version of her they gonna sell. If it's no battlefield cd version then she is very scary. This post was last edited by Kouka at 2016-10-24 19:16

It's a cd that prevent you to use skill in 1st round even if you have enough chakra. Just like most main 2nd skill. You can't use them at 1st round. That's battlefield cd.