I go with full i90 DPS accessories as the off-tank on Twintania, usually average around 200, but that's with keep debuffs up so the DPS is a bit lower, and I also have to hold back during Conflag phase so our MNK stays number 2 in threat to avoid being conflaged. I have like 7300 HP with food in DPS accessories which is more than enough to handle the 4 small snakes, DPS does drop a lot during the final phase when you are eatting eggs for the group, but before that it's pretty good. I see no other reason to bring a WAR as DPS though, you will never contend with true DPS.