It's funny that they decided to actually buff Reaper's Arcane Crest down to a 15 second recast from 30 seconds. Now it's not only objectively better than Oblation, but it's functionally a mini-TBN without risk of any damage penalty and a party-wide buff attached.

Even if DRK by chance ends up being on the higher end of the damage spectrum for tanks, I don't think it will be fun to play.