Oct 16th 2010 1:08PM Well they completely cleared his room. So you don't even need to worry about clearing. He's the only mob waiting in that room now. I went again with to help a friend today and killed him again, but no mount dropped. So it's definitely not a 100% drop rate.
Oct 16th 2010 3:53AM Oh, and oddly the bosses still drop spirit shards.
Oct 16th 2010 3:49AM I read the article, logged in WoW, went in there, he was standing there in the middle of the room. Killed him and he dropped the mount!!!
I soloed it as Demo warlock. Most of the mobs were pretty easy. Guards hit pretty hard and I died 4-5 times before getting to Anzu's room. The boss fight was annoying but manageable.
Don't know if this is a bug or intended, but I'd get on it pronto if you want that mount. Thanks WoWinsider :)