Phase I: not much of a problem except when melee do not move when they get the stacking debuff which must be dispelled. when the debuff is dispelled it has a knock-back component which obviously causes a hiccup in dps if they melee is all knocked away from melee range; ranged classes can pretty much be dispelled immediately.

Phase II: gear check on the tank. also the transition can be tricky if the tank and healers are not the first few through the portal. By far the Hardest part of this phase is the beams, avoiding them can be done and is easier for ranged to do because of the simple fact that they are ranged. The beams create a significant problem for healers who do not have many instant cast healing/mitigation spells. I recommend taking a tree for raid healing.

Phase III: we didn’t get there before our 1/2 pug started to break apart.