Lol, I've had a few Gruk fights like that. Pull from far away with a drag, end up getting the dot right off the bat. 3 or 4 adds pounding you along with the 500dmg per tick dot, meanwhile saying "/g COME QUICK MEZZD" Couple others run over to find you dead, res real quick, juggle the 5 adds and re-buff at the same time. Kill the adds first, then finally Gruk. We laughed about it at the end of that one. Funny thing, the group was all excited to go on the next kill down the road...