He casts "Midnight Oil." It must have been AE, because we all had it on us afterwards. The d.o.t. was hitting us for 231 to 273 a tic (the one with 273 had lesser dot shielding gear). We radiant cured it after the fight.
He also casts "Knockout Punch", which hit the tank for 4998 and had a healthy knock-back component to it. We had him pinned in the corner. I got flung, and ran back to his spot in the corner, and we killed him before it went off again. I got hit with it twice, during the fight.
He hit for 350 a lot, and a few 800's and 1327's mixed in. I got hit once for a max of 1586.
He didn't resist anything we threw at him. We tashed him right away. He is mezzable. We mezzed him on the pull, and debuffed him, not knowing what to expect from him. We had our bard resists going. The only thing we got hit with was just that one dot.
It was a fun fight for our crew: 83 Zerker tanked it 83 Shammy 83 Bard 83 Cleric 82 Warrior twink (dps)w/zero aa's Merc-cleric Journeyman-1, set to efficient