Lets just end this debate....

Onyxia

Phase one- preff to be used pre pull but any time will work, a correct tanking position will minimise kockback to whelps

Phase two- they will taunt the adds, die in 5 secs and make aoe difficult DONT TRY IT

Phase three- Use anytime right after a fear provided the boss' tail is not aimed at a whelp pit