He spawned near all the others for me in the far nothern area. He was in an area with many wanderers. He hit for upward of 725 (probably 840 max like the others) on my 66 warrior. Due to several adds we were unable to kill him fast enough, and he despawned within a very short time after engagement (maybe 2 min). He sees invis.
hits for alot more than 840 =/ smacked my lvl 62 merc for a whopping 1500, i dont know if it was a normal hit or a spell but it wiped me after merc died