Four boxed him today. 107 Enchanter, 98 Paladin, 98 Mage, 97 Ranger. I pulled him into a nearby hallway after clearing a path to him for quite a while. The fight went ok for a little while, but then the mummy charm happened. He started turning everyone in the party, including pets, into mummys. There was also a knockback AE that made the whole fight a complete mess. After killing him, he poofed and dropped no loot or exp. Maybe a charmed party member killed him or something. No idea. Never fighting him again. The 1hb isn't worth the time or effort.