Switch to E/R, use Storm Chaser instead of mantra of earth, and put in Edge of Extinction with your sliver armor. Ball them, use radiation field to reduce their health below 90%, then cast Sliver Armor and use EoE while it's damaging them. You'll get hit with the occasional VW but as soon as the first one dies the rest will go too.
I haven't tested this in hard mode, only normal mode, but there's no reason it shouldn't work.
|