yeah go VIT and learn the fight. know when damage is coming your way and prepair by either popping a CD or waiting to use inner beast right after it hits.

She has a few abilitys that can be dodge all to gether. i cant remeber the name of it but, on the first phase its the only attack she does that has a cast bar. just run through her and then back to your original spot when shes done casting. its a SUPER heavy attack and can be dodged just by getting out of the way. I have noticed there is no red box for said attack. seems to be a cone.

that being said, you gotta trust in your healer and trust in your self heals. help the healer as much as possible by rotating cool downs. communicate when your going to use inner beast if possible. Over all its a tough fight but can be done for sure.