Yeah 1st night that pull was hell on earth. Last night it was cake for us. What we do is...
1st night that pack had a stack of 10 on it like you were saying. We had the MT LOS behind the boulder type thing on the right of the pack. Skull is the Drone, X is the other medium spider. MD skull to MT and have everyone wait till skull gets to MT. AOE the crap outta things to kill little spiderlings. Nuke skull. As skull and the spiderlings are picked up have your OT run in and smack the cauterizer/other 2 humanoids. Interupt what he can. Once skull and x are dead then burn the crap outta the cauterizer. Its usually cake if everyone is alive once drone/spiderlings are dead.
Last night it acted odd. No stacks on drone. We did a /happy dance and the md went out, the skull went to MT, but the other spider ran into the shield... the humanoids then came out of it. We nuked little spiders/drone then went cauterizer, medium spider, other 2 humanoids.
Pretty much just deal/eat the spears they chuck at you. Nothing you can really do to avoid those.
---------- Post added 2011-06-30 at 04:57 PM ----------
One thing that might help you is that if you have a sv hunter or two they can stagger ice/snake traps if they are spec'd into entrapment. The snake trap will act just like ice one in snaring them for a few seconds. Not sure on your raid comp though, but if your a 25 man guild Im sure you have at least 2-3 hunters I would think. Could be wrong though... stranger things have happened . If you actually have multiple hunters spec'd into this and its still happening then you might need to put another dps on the spiderlings to help out. Maybe have one set the "nuke" set, and the other the control set until the other dps can get to it.
In 10 man I am able to solo the spiderlings while my range nukes spinners then drone.