Made up of 4 little bosses, one after the other, when one killed they each have one ability which continues ot be cast throughout remainder of encounter (underlined below).
Meng the Demented- when 100% insanity
-Crazed - big tank damage 200 energy = 400% tank damage - heal!
-100% insanity goes to Cowardice, wanders about with Reflect some damage, group up, do slow damage and AOE heal
Maddening Shout - 10k per 3 secs - group up, do quick AOE to each other, cures it. Mechanic was buggy in beta.
QiangBig frontal cleave (like Domo scorpion which is split by raid)
Anihilation - frontal 1.5m - move out and avoid
-will go straight back into melee after, so move same way together so ready for next frontal cleave
Flanking Orders - little wall of Pandas - avoid
Subetai the SwiftVolley (cone) - move out - does it 3 times in a row - increasingly narrow cone, but higher damage
Rain of arrows - get stuck to floor, kill arrows to free
Pillage - charge random player - move - if not you become a turd and useless, steals all gear, all armor, your HP and your wallet.
Zian of the Endless ShadowShadow Blast - interruptable (8yds)
Charge Shadows - random player - chains to <8yds - keep spread out - was AOE healable on beta but prob not on live
Undying Shadow - spawns a mob which is attached to you - does shadow to anyone within 20yds until killed - defile animation when dead - avoid (they shrink and then mob respawns). Kite out of raid and kill. Disappears after 2nd death.