[quote=@Cyclone]
[@Kho]
I think necromancy makes the most sense if it worked by using Mammon's occult magic. Perhaps it could be done by summoning a demon to possess a corpse, or preventing the victim's soul from leaving its body even in death.
[/quote]

That's a...cool idea. A weak demon made much stronger by a premade physical body. It'd certainly work with the whole theme of the occult. The interactions between souls and demons would be very interesting. I could imagine monsters formed out of half-demon half-mortals, where part of their soul has been returned -- but the rest is supplanted by demons. Perhaps they would hunger for more souls to fill themselves up with. But that would depend on whether Slough/Legion/Fretzzo were down with allowing that kind of stuff to happen.