The issue is people focusing on complaining about WAR, as if that is affecting DRK in some way. It doesn't.
DRK's problems are DRK's problems, you need to stop comparing it to WAR otherwise you can't be taken seriously.
Living Dead needs to have a healing buff attached to it full stop. I'd argue it needs to be a 50% boost to healing in order to match the other tanks.

Now as for other changes, it would be good if blood weapon was buffed to have a reduced cooldown, OR, siphon strike increasing the amount of mana regenerated. This would give more resources for DRK to use and speed up its damage gameplay, and wouldnt make TDN punishing to use in the event you make the error of using it on anything besides a tank buster.