Pretty sure Oblation is meant to be used with other Defensive CDs as well as TBN to mirror the effect that the other 3 Tank 25s CDs are but instead of them having their additional mitigation for 4s the DRK's is 10s.
Oblation feels like it should be on TBN.
Blood Weapon needs to be on a stack system given the weaponskill/spell problem.
Living Dead needs a rework. Take a hit give 10 second invuln and just autoheal 25% of our HP after it expires. Remove the Healer Drain.
A little gray icon isn't a good indicator on topping off the DRK. A 70k heal over 10s is a hard task when you say have a Sage.
The other invulns don't have 70k+ heal requirement.
Make TBN better by making it free and put it on a 25s recast. Remove Dark Arts. You want Dark Arts put it somewhere else.
Keep MP spenders relegated to Dark Side attacks. Spend MP for Blood and spend Blood for MP.
This whole 15s burst and 45s feelsbadman isn't fun design.
I'm sure it's fun for some players but I don't think the majority.
Really don't care what they do but the job has problems. Problems I feel were made to be there on purpose.
GNB being 2% behind DRK in DPS ironically should make people want to pick up the GNB instead because unlike DRK they actually have good defensives.
If they want a counter attack Tank then use TBN shield break and give us a skill that specifically does huge damage because of it.
I would expect no less then 1200 potency or higher if that's what they want.