here is my question about the 13% damage deal.

Has there been anything that Needed the 13% damage debuff? I know more dps = faster dead things.

I recently made the decision to go 1 tank (paladin) and 4 shaman. I just like the feel of this better than 1 tank 3 shaman 1 druid/warlock. I am pretty sure I didn't shoot myself in the foot. I see the 13% damage as a perk not a necessity.