DRK does need a slight dps boost. Instead of potency increases, though, I think that the best place to do it would be to add a small amount of baseline MP to Bloodspiller/Quietus, and have Delirium boost that MP generation. Just enough to generate 2-3 more Edge/Floods per minute.

Living Dead needs to be adjusted. We need UI elements to show how much required healing is needed at a bare minimum. If there's no change to how Living Dead functions, Holmgang needs to be on a longer recast. I don't care if that involves just swapping their recasts, or pushing Holm up to 6 minutes. It's not worth the trade-off. Alternatively, just rework the action. There are like 500 threads on this.

I wouldn't mind Dark Mind/Missionary if the devs designed fights like they previously did, where there was a mix of physical and magical damage going out. But if you're going to design a purely physical fight (including physical AoEs) for an end of tier fight, it just doesn't work. What's the advantage of Dark Missionary/Heart of Light over Divine Veil and Shake it Off? It's not like you get a recast advantage in a purely magic fight. But if the fight involves purely physical AoEs, then you're pretty much stuck. That's not a trade-off, it's a flat disadvantage.

Either DV/SiO need to be on a 120 second recast, or Dark Missionary/HoL need to work on physical damage. I don't mind Dark Mind so much because of the fact that TBN is so good, but the raidwide damage is going to be an issue.