I have
Pally. <-- Tank
Preist. <-- Heals
Shaman
Mage.
With that pally Agro'ing everything and not losing the agro, i can tank around 20 mobs, while priest heals me heaps and still keeping agro.
Mage stands back and AoE's While shaman and totems pwn target.
At the moment they are only lvl 72, but they still owning like they were at lvl 11 when they all met each other.
