I was actually looking through your guide the other night. My Necro/Dark MM on live was actually my first 50 and was kind of a beast. Recently got back into playing his remake.
Haven't made it through your whole post yet (fell asleep because it was late and i was super tired lol), but is there a sample build in there?
I'm trying to remember how I had him built and just flat out don't. He feels lacking from what I remember on live lol