I never understood why the undead have to be evil or even why necromancy is viewed as evil actually i have had the idea that necromancy can be used as a healing art in a way as i can imagine some really talented Necromancer revving dead blood cells (Lets make something perfectly clear i am not a doctor or view myself as an expert in biology i know some basic stuff but that's it so are we clear? Good) or just revving dead cells.

As for the undead I know in some stories D&D for example an undead is powered by negative energy but i don't see why that should make them as evil so that is why i really want to make that undead kingdom idea happen