We don't even take a blm into the turn and do fine. One thing is that we all 100% aoe phase 4, including the the whm using holy. We just aim at the rook but don't focus on them. They die before all the spiders just from auto-attack and aoe damage anyway. Brd ballad's up after this phase to get the whm some mp back.

The reason for getting those bugs down is that, for the brief time the main tank has 2 dreadnaughts they take a lot of damage. And a lot more damage still if the one has been fed.