Use abilities to move the crystals to a good location to tank dragon.
This will interupt some of his AE's, although his AE's will kill them crystals also.
Adds can be CC'd very easy, just ranger root or shaman VP etc
Wolves... i never personally have been sent there, but they don't see invis. So most class can fade really and invis out, drag anyone who didn't manage to live with them.