Tried it three times on Heroic (haven't done it on normal). Wiped first two times before the end of phase one. Wiped quickly when phase one began for the 2nd time on the third try.

Only reason I'm trying is b/c he'd be another badge. If that's your reason, don't waste your time doing all the prereqs, not worth it imho.

I own the vast majority of heroic bosses out there. Ahune I got to 98% in my best try of three. There may be some trick to him, but it's late and I'd rather take my wife out to dinner than try and figure it out atm :P