Spawned on the second level.
Approx. 110k HPs, average hit 444 (max 1008) on 75 warrior merc, AE was hitting me (76BST, ~1400AAs) for 4050.
Biggest problem wasn't him or his AE, it was his two friends that were standing next to him when all 3 aggroed when we weren't paying attention.
EDIT: Edited for clarity.
Edited, Aug 9th 2009 10:30pm by Baleel