Onyxia Attune is Now Bind on Account 

Hell yeah Sardako about to go solo UBRS key boss on my warlock. And if I ever level up my horde toons to 60 ill be doing the same thing

and where for horde ?

Where is location vendor for hord side ?? I can't find it whit my main char

And you don't have to equip it to zone in right? Just needs to be in your bag... So you can have a level 1 zone in to Onyxia's Lair