18 pages of NA DRKs who seem like they can't agree on what they want for DRK to have... so let's take one step at a time.

3rd combo finisher that has raid utility slapped on it.

Just as much raid utilty as PLD.

self damage mitigation; traits that could easily fit DRK in terms of role AND lore: Shadowskin could provide 5% Defense boost but only in combat, and Dark Dance increases parry and evasion rate by 20% and have DRK parry magic attacks.

Dark Arts would require traits to be useful for endgame. Dark Arts Mastery would decrease mana costs in halve, make it so Dark Arts is no longer lost for 1 effect and increase duration to 15 second with certain actions increasing the duration to 30 seconds max with but cooldown is 180 seconds.

Buff Blood Price MP regen so that it gives more MP.

Quietus needs to have 15 blood gauge cost to actually make it worth using in AoE situations.

And have Delirium add extra effects to them, For example Blood Price adds a Bloodbath effect.