My team is Guardian Druid, Fury Warrior, Enhancment Shaman, Survival Hunter, and Holy Paladin. What i did was burned all CD's and Heroism and nuked him bigtime. However, on my enhancment shaman I glyph it for healing and make sure i keep healing rain down and use the maelstrom procs for Chain Healing instead of Chain Lightning, i lose some DPS but the offheals help alot. Other than that i ignored all other mechanics and blew it up.

My fury warrior has Impending Victory macro'd in, and my guardian druid alternates spending rage on the Dodge Ability and the Healing ability (Forget their names atm)