Yeah. I'm estimating that you'll need the holy trinity (tank, healer, 3x dps) for any team that isn't a mage team :P Warlock pets couldn't survive long enough to tank. Maybe hunter turtles could stay alive if you have pets on your Grid and keep them spam healed?
The only other option is multiple tanks but it is too slow to kill single targets in my opinion. Someone mentioned using all Blood DK's and another person was using 5 bear druids.
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