After playing around with most tanks, I think WAR is still the worst OT of all jobs as an OT. Nascent Flash is only a 10% mitigation and the "heal" even when saving up your skills for a "big heal" comes out to only maybe 15k or so heal which isn't enough for me to care about when my healers are just going to be ready to top me off after a tankbuster. I would rather have the higher damage reduced so I don't have to burn as many cooldowns than some "minor healing"