Hey guys, I was struggling to complete [An Ancient Evil], I was just about to give up when I found that if you accept the quest, abandon the quest and accept the quest again, you will spawn the elite mob twice. The friendly NPC will start attacking one of the two elites, which gives you enough time to run in and attack the second elite mob, thus completing the bugged quest!

I've read that a GM will complete this quest for you if you have trouble completing, as for some reason some players can't complete it.

But there you go, just accept the quest 2 or 3 times before you run over to the elite and you should have enough time to land an instant spell or attack to kill it yourself.

Pin this mofo

W00t