Originally Posted by
Notfair
He is now healing 5% of total health per zombie regardless of zombie HP, which is the way it was in retail. Originally warmane had it programmed to heal the boss based on how much health the zombies had left, meaning you could just let him eat them after decimate, but it is now fixed. As far as the number of zombies / threat issues on them I cant attest to that.
My pug runs are killing it now by utilizing a third tank (preferably pala or warrior) to kite the adds through frost traps and earthbind totems placed near the back of the room. The whole raid switches to aoe the zombies when they get decimated; all melee is instructed to head towards the back 3 seconds prior to decimate coming out, and ranged dps switches once decimate hits.