I'm not exactly sure what you're asking.

Apparently you have a group made up of
1 Blood Knight MT
1 Fury Warrior OT
2 Survival Hunters
3 Shadow Priest
3 Affliction Warlock
1 Resto Druid
1 Holy Paladin
1 Elemental Shaman

? That's 13 toons... what are you doing with them? Fighting some thing that never moves and only hits the tank with a 4 minute enrage timer? I'm not understanding what the question or what you're asking for advice on... sorry...