One thing that I don't think I've seen anyone mention about DRK is that their shallow MP/Blood pools are kind of at odds with what is ostensibly the class's biggest strength in terms of DPS optimization.

In theory, DRK's biggest strength is that their burst happens whenever they want to spend MP and Blood, instead of being tied to cooldown buffs on a strict timer. In practice, they can't even store 4 DAs worth of MP, and can only hold 2 BSs worth of Blood (TBN will overlap your Blood if you have enough for even one BS). So you end up having to spend it as it comes, instead of being able to save a meaningful amount.

If DRK's MP pool were bumped up from 9.6k to about 15k, and the Blood pool bumped up to 200, I think that would go a long way toward letting DRK capitalize on the unique resource-based nature of the class.