I have thought about DRK adjustments for a while, and this is what I think we should get.
A defense down ability - WAR has Tomahawk, DRG has Angon, THF has Feint for Evasion Down, so why can't DRKs have an ability like that? Also they could make it so Angon/Tomahawk won't overwrite it. Imagine if you was fighting a high defense mob and you could do the ability at the start of a fight?
Buffs to your party - So we have absorb spells, but how often you do you use them? It seems pretty rare for players to use them nowadays, maybe we could get a whole new range of Absorb spells, and once you absorb the specific stat(s) out of the mob, the rest of your party will get that stat too.
Examples:
Absorb Regain - For those monsters that accumulate TP on their own, why not allow a DRK to absorb some of that and give it to the party?
Absorb Defense - A stronger version of Absorb VIT, which could be absorbed into the party, potentially buffing a Paladin tank.and lowering the monsters defense.
Absorb Attack - A stronger version of Absorb STR which can be given to other DDs in your party.
And after reading about DRK magic spells in the other thread, I do agree that DRK should get a decent Dark Magic based Nuke spell, one that will give us a substantial amount of TP so it don't hurt our DPS.
Also what about some form of enfeebling spell? It would be great if a DRK could Blind, Paralyse or even put Terror on a mob.