Trainer Torkh  

stood on lip of wall, looking at 45 degree angle while standing between 2 nearest targets i hit h then knock back root. he started by casting on me so by the time the root hit he never swung at me. he pop on to the wall 10 15 foot away and root rotted like a good mob. i did take about 25% damage from his spells but i never bothered to cast a heal.