I would like "Killer" traits return

[Airal]

I could also see them making this part of a new tank or healer's minor mitigation toolkit. Various killer traits as a tank levels up, that activate about as often, and about as effectively, as block or parry, and throw in an ability that buffs the % for 20 seconds. Or a spell a healer can toss on a player/whole party that averages out to be Eye for an Eye/Sacred Soil-ish.

If they balanced fights around people rotating skills like that in a meaningful fashion that would be rather interesting as an option. It would also answer the call I see occasionally for a debuffing class that wouldn't simply break the game in two because you can combine every other class's meaningful status effects into one super class.