Actually, watch your health in case you kill yourself cause he takes time

Other than that, if you have lots of health, ok, go for him. Otherwise, run around, pick off his minions, wait for his shield to go down, VS/other skill him, run back so he doesn't KB you. When your CD's are done, run up to him, repeat.

Oh yeah, you can feed on him (no shield) or his minions, of course.

Most groups I join are not having that much trouble with him. Sometimes when we let too many of his minions stay alive, but mostly it just takes a little time to kill him is all.