I've wiped about 15 times in the first room now, and given up. I must be missing something obvious. Fight typically goes like this:

Pull 3, paladin instantly loses aggro on one, no matter what I do. Taunt fails 80% of the time. Shaman proceeed to get 2 shotted by the loose mob.

and/or:

Entire group gets conflagged, even if I'm facing the mobs the other direction. I take 2-3.5k enraged hits + shadowbolts until dead with no heals. Shaman die shortly after.

Every pull is like this.. my shaman only have 900 spell dmg and I've stopped using EM or their trinkets just to make sure they aren't over-nuking, but we get wiped in the samemanner, every pull, like clockwork...

what am I doing wrong? I thought this was a 20 minute instance...