Found him in today and pulled with snare, doesn't look like any mobs here are social.Slapped Winged Death,Breath of Ro and Drifting Death on him, went down easy dropped mask.
56 shaman here and most stuff in Nurga will con DB to me. I invis'd and walked in a ways over some rail tracks then dropped down into a pit near a second set of rail tracks. Most stuff here has a low agro range and I was able to single pull the entire room (about 7 mobs) before I could pull this guy. I was only self buffed including resists. I slowed and dropped two dots on him and me and dogdog made short work of him. BTW, keep your resists up in here and a lot of the spells will bounce off ya. He dropped the mask for me