Tonight, Halfus left up Slate, Storm, and Whelps.
Raid Comp:
Prot Paladin (myself)
Prot Warrior
Arc Mage
Fire Mage
Surv Hunter
Unh DK
Aff Lock
Resto Shaman
Resto Shaman
Resto Druid
We tried many different strategies, and the one we settled on was pulling the Storm drake and the whelps at the same time and burning down the storm drake with heroism, but after about 5 seconds of active time on the drake, our MT (Prot Warrior) had 8-9 stacks of the mortal strike debuff. Tank swapping ensued but with the whelps on me (and dragon now on him) I was taking far too much damage from all sources to stay up. Given, one fight we did get the storm drake and all the whelps down, but by that time we had already lost a tank. Overall we wiped about 15 times.
What are we doing wrong? Are the whelps a "must pull"? They seem to take a lot of raid damage out of the picture which is nice, because when we didn't activate them it was a whole bunch of empty health bars and empty mana bars.
Please, save our raid!