DRK needs re-tuning/buffing.

[OmegaFlare]

The Blackest Night mitigates 20% dmg and allows you to pop a 650 potency atk. Depending on the fight, like in Lakshmi ex where she does a bunch of tankbusters during the first phase, your dps could go up a lot. I think the blackest night is insane and depending on how the raids are designed, DRK might be best suited for MT. How much higher is PLD dps than DRK dps on average?

Also, the damage outside of tankbusters is negligible and should never be an issue. You have to give the healers something to heal. Stacking tbn with either rampart or shadow wall makes you nearly invincible (Lakshmi's buffed pull of light takes like 5% of my hp bar). For multi-hit tankbusters like Ahk Morn, that's where Dark Mind comes in handy.