Maybe I am just stupid like hell BUT I already use the frost resistance aura with my paladin while having the shamans on follow. Everytime the blizzard is casted on my shamans I move out of it, chain heal up and then go dpsing him again - hell I really don't know why it just feels so hard sometimes. Gotta try again anyway and my equip should be sufficient enough to kill him fast.

Unlike Anub'arak but well that's another story.

Thanks by the way, Ill try to get 5 red drakes now and after that 5 nether drakes and then every character will use random-mount-macros - they will all summon a drake but a random one then, I think it will look awesome.