THis being a purple every time to a level 50, is not all that hard to kill, However, we did it with a group of 4, a Sorc Healer Shaman and me a lvl 50 Champ. You have to watch out aoe mez, single target mezz and even lifedrain, this Gorgon is basically a Sorc!
Total cake walk if a full group with de-mezzer standing away from the rest and the healers spread out.