Quote Originally Posted by Soular View Post
The only change I see necessary IMO would be to make Blood Weapon usable during Grit, but remove the attack speed bonus while in Grit (ergo, it would only generate MP), and to give Delirium a slashing debuff under Dark Arts (so it isn't outclassed by MNK and DRK can serve a practical purpose if there isn't a NIN or WAR in the party)

Other than that I feel most things are pretty solid. I haven't really had trouble with the class after 50; it generates hate well, and has a fairly potent lifesteal, my only gripe is its synergy with the party (which I feel can be fixed rather easily)
Agreed, I've had no trouble from 30 to 54 as DRK, in fact most healers I run with commented on how easy it was to keep me standing compared to WAR.

I think your suggestion (Blood Weapon being available in Grit without the speed buff) and a TP restore solution (maybe link it to a Dark Arts combo) are all they need.