Valkry, are you saying that a T9 geared tank solo tanked the boss with all adds up? And that 4 elemental shamans healed the tank and 4 others dps'd him? This in the 80 bracket? I'm talking about the alliance boss, dunno how the horde boss works.

Unless the boss his damage scales with the gear this sounds pretty impossible to me. The tank will get disarmed / stunned at some point, where adds will charge. He does a shitload of aoe as well. I'm not saying you are lying, it just sounds nearly impossible to me to do this with T9 tank gear, which gives you what 40k hp at best?