couple things:

1. Do whatever you need to do to make sure that the DN is dead by the start of phase 4.

2. Use AoE limit break if you must to make sure everything is dead at the start of phase 5

3. Run the same strat for phase 5 as phase 2, and have dps switch to whatever isn't dead and kill them off BEFORE switching to that DN. DPS the DN as much as possible before phase 6

4. When phase 6 starts, all dps burn down the rook first. Mark it if you have to. Then do the DN that is at partial health.

5. At this point you should have 1 DN, 1 soldier, 1 knight, and 2 bugs. My static kills the other DN next, but alot of people kill the junk first. For us, we found that killing the DN next makes the damage sustained during enrage period easier for the healers to manage. However, your millage may vary.

6. Since you have two BLM, have them burn the soldier down with single target while the other physical dps work on the knight. The blm can't go crazy AoE at this point because they will take damage for every hit on the knight until its stoneskin breaks. (unless they use a limit break here, in which case they will not get reflect damage). Once the knight is low enough, just AoE until everything is dead.