For the life of me I cannot fricken kill the BE Mage Chick!!!!

The best I have done is 50% or so. Right off the start the fireballs do 2k damage to my team even with Fire Rest Aura and totem up. After that the throw around doesn't help and there is no way in hell I can get a chain heal in before she does the freeze with ice.

I'm running Prot Pally with 12k HP and 453 Def and 4 Elemental Shammy, but I find myself just trying to heal instead of DPS the entire fight and I never recover from the first throw around.