I like a lot of your thoughts. Regarding this:

Quote Originally Posted by Danelo View Post
Do away with salted earth. Ground AoEs are a pain to me and the potency is pitiful at this point anyway.
I moved Salted Earth to a macro that automatically places at the feet of my target. After doing that, it has been zero pain to activate.

My only addition: Abbyssal Drain - Keep the AOE effect, don't let its healing scale with more enemies, give it a flat healing buff, and reduce its cooldown to 30 seconds.

I have always been very unimpressed with Abyssal Drain. The cooldown is too long meaning it can't be used multiple times in your average large trash pull engagement, and every time (at least that I've seen) the health gain isn't fantastic at all. DRK already has gimped self-healing (locked behind a single-target combo). Giving Abyssal Drain a buff, alongside your suggestion for making the AOE combo have self-healing, is something that would go a long way to match the abilities that the other tanks have.

It may make DRK too godlike though, I'm just not sure. Maybe implement only one or the other. Maybe take the cooldown off Abyssal Drain completely and just make it cost MP (a cheaper/less potent version of Clemency).

DRK's self heals are the biggest pain point for me. If that were solved, I think everything else about the class is tolerable for me.