A mind-sustained vicar's cast:
- Mind Melt; chain cast every 5 seconds per vicar, 75k targeted DD (this is the mana-based nuke other comments mention)
- Reforming Light; 3 casts in 2 minutes, 1,010,000 heal to Commander
- Sound of War; roughly once every 3 ticks, 46k targeted DD + 3 sec stun
- Mind Over Matter; one cast 105 seconds into the fight; self-targeted 100% melee mitigation buff
- Hammer of War; cast upon spawn, repeated every 40 seconds; lowbie cleric pet, can be ignored
Commander had just a single cast:
I would reasonably estimate the commander's health at 100 million. DPSing the vicars was not an affective strategy. Full-burn with enough DPS seems to be the way to go.