First off, thanks much to the frequent posters in this forum - you've been very helpful in other threads I've started about doing Tier 11 heroics. I'm in a group finishing up all the Tier 11 hard modes we did not get done when it was current "for the luls" mostly. We have Nef-H, Sinestra, and Ascendant Council-H to go - so obviously the easiest next choice is Nefarion.
One thing I cant seem to figure out is whether this is a 2 or 3 fight tank on 10 man heroic - I know its a 3 tank fight on 25. The question is, I suppose, whether or not the skeleton adds in phase 1 on hard mode are enough of a problem to require a third tank or if any class with a taunt button can handle them as they do on normal mode. The other issue is we really don't have a lot of choice because the only DPS with a taunt button in my group is a warrior, who I would prefer not to have to do this as he does insane DPS (but all the other DPS are ranged and a rogue).