I wanted to give an optional strategy suggestion. Although i'm unsure how how things come to play, i have you all to fill in the holes.
I see the 2 biggest problems we have are the dogs and the raid killin AOE.
Now does the boss spawn her minions to heal her at a certain % of health or is it random? If its random then can't we just put a tank and some healers to keep the tank up on the boss and the rest on the next biggest problem, the dogs? Keep that up until all the healing minions are dead then do a full dps on the boss? maybe leave a team on the dogs? This way we dont waste stamina and time dps'n her down just to see her go back to 100% (depressing) And we limit the amount of peeps who don't keep up, causing a raid killing AOE from boss. and we handle the dog issue, until we start beating on her.
Of course this comes down to wether or not she goes to get heal based on time or health %.
So red tanks the boss, the necros wait to kill minions, and the rest kill dogs until all minions except one are dead. Then we unleash on the boss. Maybe keep a team on dogs or go back and forth as a raid. But she wont be getting healed back to 100%
What do you think??
Just trying to help