Undead Faction Idea

A reanimated King would just be a Death Knight.

There would still be an Evil King, of course.

How can there be an evil king without sacrificing a necessary part of the game?

What happens if Apprentice becomes King

Why did the deaths stop for three days
Kill him

Necromancer becomes King

No more necromancer whatsoever, making the entire faction basically a two-man psycho-king.Just an EK but also 1KPN

Starting Evil King works.

If Apprentice steps up, you can have Revenant.

If Necromancer steps up, all existing Undead also remain, so kills continue.

Or you can just not step up.

I thought Apprentice becomes Necromancer if Necromancer isn’t Necromancer anymore?

Exactly.

Also if any other Undead lose the Undead passive (via Possess or Ritual) they can also become the Necromancer.