Nazkra - Wizard's Den (Adv Solo)

I am having serious trouble with this guy on my defiler. I know the strat to kill him but I cannot burn him down fast enough before the vicars arrive and start healing him. I was able to kill him on my coercer and dirge using Zhugrus molo. My defiler only has DoT dmg and I have failed multiple times using my pet and both Zhugrus and Valkiss. Any suggestions?

Target the vicars when they come in, and you can interrupt their heals.

Thanks. I'll give it a try.

If you've got enough potency levin bolt or septic strike will one shot him. Haven't tried the other two starter nukes but they might as well.