We tryed it Bish / Psi / Zerker took seer to 40-43% b4 first mass teleport, quiet easly, golem phase went smooth aswell, too bad our bishop had desync

(important to use pain link(20% extra dmg) and zerker roar +25%dmg, once he stack full berserker rage)
phase 1: fell nova tanked by zerker or me(psion) (with shild from bish)
(minion troll zerker for roar)
phase 2: zerker ofc left + minion troll, I on right + soulstrikes from bishop
(spellstealed mend, so durning golem phase I keep mend on self and minion)
it takes little longer but 2 menders help a lot.
#zerker with shaman merc (frosty blade must scale with ap, cos zerker had insane bonus dmg)
#psion with troll merc (prefer sorc, but on golem cant split attack order)
#bishop sorcer merc
once you learn mechanic and golems dont bug, it's simple, but just like all harder fights require focus, and peoples from pubs usualy just go in numbers and focus on loot.