Regen Necro
Regen alone does not justify using healing power. It’s a overtime heal that stacks duration, not intensity. When I checked the build, Regen necro wasn’t the first description came to my mind.
You could argue for healing power on necro with Deathly Invigoration and Well of Blood on top of that regen. Note: Transfusion doesn’t scale with HP if I remember correctly. But even then it is not as good HPS as other classes, but it’s worth a try if you like the playstyle!
[TA]