Are you supposed to be able to defeat the Demoness in this build? Or is it something you'd be able to do later on in future updates? I've tried both a Max HP tank build and a Glass Cannon full Arcane build, but none of them worked so far. (And yes I've made use of all the five potion bottles I have at my disposal)
I feel like this boss battle could've been the perfect incentive for training and leveling Evie to max so you could take her on together and possibly have a chance of defeating her.
