Camped this guy for about 3-4 hours, killing his PH every 11 minutes, during an increased rare spawn event and he spawned 1 time out of about 20 PHs. So, I can't imagine wasting my time camping him under normal circumstances.
Tanked twice with Ranger using shield. Buffed to 4265 ac/98 avoid/35% shielding and using Weapon Shield, Outrider's Evasion and Protection of the Spirit Wolf, all defensive aa's, imp dodge/parry V. Damage intake was 2300 and 2000 dps on the two fights. Obviously this took ALOT of healing to accomplish. Mob has 550k hp's, summons and is snareable. Good luck.
I parsed him at 360,000 hp give or take a few k. Max hit on a 30k, 4600 ac Warrior with Shield on fully buffed with max shielding was just under 3k. He did 65k total damage to me in 54 seconds.
(may vary for others i burned him quick with 2 zerkers rogue.
PH is a Dragorn muramite. Spawn was at South East hallway that leads to a dead end. His PH does not roam just sits there.