Originally Posted by
Dracodraco
Kind of bull. Due to vengeance, a third tank in 10 man doesn't change the DPS requirement. As long as the tank isn't dumb they will tunnel all of their damage into the Animus, and just keep the massive on them through passive cleave damage. It's also a fact that the DPS requirement in 10 man is "easier" to meet than 25 man due to the health pool of the animus.
But yea, 900M hp in 25 man, assuming 20 dps, 1 tank, 4 healers, 160 seconds for enrage, that's 90M/160=5625K raid dps, 5625K/20 = 281K. Subtract however much the tank can manage to push out from 5625K and you've got the exact number.