Heal Thyself, turn camera and backstep. I only start with Focus Heal at the very start once on the tank for initial hate (Probably a habit from Mystic), then go from there. You should even be fine getting hit with a few mobs on you, assuming you're using the poison to kill them off while going along. Healing Immersion won't pull the hate you need, but it's good to help out party members low on HP since there's no root.
So a zerker wanted tips on how to escape donut and what not quickly. I don't even have lvl 1 zerk, but I knew we had some conversation in the RQT somewhere. Anyone care to chime in?
There are several ways:
1. Leaping/Lethal Strike out of both circles and avoid it altogether. (Safest)
2. Charge Thunder Strike while inside, Evasive Roll out and Evasive Smash back in.
3. Run in and Leaping/Lethal Strike out.
Oh, I forgot to add... Never EVER Leaping Strike to get into the first circle. That is a damn deathtrap. If you know you can't make it inside for the first circle, just Leaping/Lethal Strike out of both circles.
try using mayhem or wonderholme gear... then it should come down to the mechanics of the boss