For AA/Hel Ra:
1 tank, 1 healer, 1 sorc/offheal (putting down them negates) 9DPS.
You need a sorc that can regen enough ulti to negate both trash before 1rst boss and who can also put multiple negates down in The Mage's burn phase (aka have negate up after the first one is finished).
If you're running with pugs/not so good players, safest bet is 1 tank, 2 healers, 2 sorcs and 7 DPS.
If you want to get funky: 12 NBS or 12 Templars .
Nothing is set in stone though, but some stuff works better than others. The less Healers/sorcs you have, the better since it means you can get more DPS.
For AA/Hel Ra:
1 tank, 1 healer, 1 sorc/offheal (putting down them negates) 9DPS.
You need a sorc that can regen enough ulti to negate both trash before 1rst boss and who can also put multiple negates down in The Mage's burn phase (aka have negate up after the first one is finished).
If you're running with pugs/not so good players, safest bet is 1 tank, 2 healers, 2 sorcs and 7 DPS.
If you want to get funky: 12 NBS or 12 Templars .
Nothing is set in stone though, but some stuff works better than others. The less Healers/sorcs you have, the better since it means you can get more DPS.
I couldn't agree less... I've never negated the mage so thats not a requirement, as far as the trash goes we mostly just run through it, however for some reason we still bring 2 healers even tho it really isn't necessary but i guess just in case is better than crap i need one... I really don't believe you NEED anything, play it the way you want there is strategies for everything and ive done them.
It's more about knowing what key skills need to be in place for each boss.
Like for instance:
# of Veils
# of Barriers
# of Novas
# of Negates
making sure someone is using elemental drain and everyone using evil hunter for when it applies.
Making sure Dk has chains, etc, etc.