Hits around 5k, no ramp or flurry that I saw. Had AE Wall Breaker that he cast every 3-10 seconds for about 4500. Low hp, we managed to get him to 90 before we got pwned, but definately seems like a raid mob.
Update - got another group to come with from guild last night and we managed to kill him on our 5th try. Way too hard for the loot he drops imo.
Killed him with a group of 76-79: warrior, enchanter, monk, rogue, druid, healer merc; not a raid mob ;p Monk phantomed one of the mobs near him so it was a 3 pull, enchanter mezzed the mender + mechanic, squad beat up the named. Yeah the AE is freakishly annoying and powerful, but A5 healer merc kept us up.