How about the addition of a Carve & Spit-like skill that recovers HP instead of MP? A single-target Abyssal Drain, if you will. I hate that recovering HP button is shared cooldown with recover MP button and that you can't do both still, but if you had a single target oGCD version of Abyssal Drain, it could be a threeway share for all I care. Just seems like a waste that their only non-Souleater HP gain skill is so directly tied into the AoE set of skills these days. Maybe Oblation can be the one with an HP gain rather than TBN, since I agree with Reinhardt_Azureheim about the skill expression aspect of having to use MP instead of thoughtlessly bashing it for a freebie like other tanks. Giving up a chunk of something for extra effectiveness is part of dark knight's identity since the classic games, it's part of what makes it satisfying. If anything, maybe warrior and gunbreaker can be given something to do with those useless MP bars of theirs? That would help distance TBN's MP cost from being perceived as a weakness, instead of a strength. Paladin's Sheltron does take job gauge, remember, so maybe the perception should be that the freebie mitigations are a warrior and gunbreaker specific thing rather than an issue of dark knight being the odd one out.