Coldheart at 60 should help. The way drag works is, every time he gets his deep breath off, it does more damage, until eventually you can't survive it. There are two ways to solve that- either kill him fast enough that you don't reach that point, or do enough damage so he doesn't cast it.
But more importantly, your stats on coldheart are very wrong. Being at 50 generally hurts, but you want waaaaayyyyy more cdmg for her to be useful.
arrrrggg so I must find a way to rise cdmg as well as I focused only on speed and crit rate at 70 (as per some prev post) 😅
