hm, i survived for a good amount of time with that (plus the experience of past attempts), but once it gets to phase 2 i have to deal with the serpents endlessly and can't damage belial. except for incidental damage from the hydra, i guess, but fire bolts isn't damaging him at all because i'm using it on the minions. and i can kite those back and forth for a while but eventually i just get overwhelmed.
going to try spells that can hit both targets at once but with arcane power costs i'm not optimistic
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