If you want to go for her with random build, then you need to have high lvl and use some tricks.
It's just me, but I used Many items and Cheated just to get past her. I just saved before her every attack/roll on any afliction and just brut-force till I won
If you want to do it properly, you have to lvl up via mimic-exp-farm or any other way you like and respect for semi-glass canon build with lots of crit. (Since at this fight you have some free turns before turd get real)
Tl:Dr If you don't wanna do her proper way just cheat the hell of this battle with tons of saves and you good to go.