A fun one :)

Nothing really difficult here, you'll only need a bit of proc luck and good kiting to achieve the kill.

Spec Mirror Image, Blazing Speed and glyph Rapid Displacement.
Never hit Subetai's Sleight of Hand (I did once) it reduces dmg and healing done by 50%
Also never hit Zian's Shield of Darkness (my MI did once), it's a 22k dmg.
Keep an Ice Block for Meng, it removes both the Maddening Shout and the Cowardice. Careful, Meng reflects a percentage of damage done.

Patch 6.1.2, 697 ilvl

Music : Grendel - Remnants

Armory : http://eu.battle.net/wow/en/character/hyjal/Araitik/advanced

Enjoy :)