i am assuming that we are talkign about normal mode here. If your having trouble sending peopel up then dont. then p2 dps requirement for killing her at full hp is woefully low in normal mode. Just make sure you are rotating healign cooldowns around 25 stacks on. You could probably pug this fight if you dont send anyone up. also have classes with frequent drs soakign the kamikazee spiders outside the center where the raid stands.