Time's have changed since back then, the more dots you keep up the less she deep breaths or thats the belief. /QUOTE]
uh she did that the night before the wipe fest at onyxia.
as far as people clumped up ect that has some barring on it but not as much really there should be 1 clumped up area and that is the rogues underneath onxyia. any melee instant cast attack can be performed from underneath her.
typically what i have seen done is
phase one tank solo's her down to 97% basicly, DPS digs in till 90, backs off completely till 87%... rinse repeat till she takes off.
when she takes off mages/warriors go and take care of the first wave of whelps, then it is up to the warriors to take care of whelps from there.
meaning while all your hunters/rogues are doing as much DPS to her as they can while warlocks toss up their dots.
rogues and hunters can go all out at this point because when phase 3 is called they can just feign death/vanish to drop their hate.
also as seen last night the transition from phase2->phase 3 is the toughest part.
what you can do is as she is coming down to land the MT pops recklessness then goes back to defensive and spams his HS/revenge(shield block to proc it)/sunder as much as he can in the 20 seconds of immunity to fear. then after he/she has that run out they may want to pop zerker stance and tank that way so they can zerker rage out of all the fears(if you use ctraid/spell alert you should get a warning that she is casting bellowing roar and that is when you pop your zerker rage) or if the tank is fury they can stay in defensive a bit longer and use deathwish.
the tank shouldnt need to worry about his/her heals at this point since the vast majority of them should be focused on the tank anyway. so taking an added 10% dmg or so shouldnt matter.
if you are worried about one tank getting feared then at the start of phase 3 you can position everyone on one side, with an off tank on the otherside that would be building hate ect, and let's say the MT's zerker rage is down the OT would go to zerker stance and just pop his/her zerker and onyxia should go to them.then that OT would become your new MT and the old MT goes to the OT position and they just cycle till she is dead, healers should be healing by MT target's target(enabled in CTraid) so it shouldnt be much of an issue.
(the above paragraph was an improvised strat we used on our successful 21man dowing of her with Throwed*fullt1) MTing and gnome ended up OT it)