Well, I don't know... For some reason, when I played as Necropolis in the fourth game, I never built demons... I didn't see any advantages in them... rather, the undead have more advantages... much more.
Devil, life drain.
Harpy is the most powerful ranged attacker, not counting the Titan (and those who attack in a group).
Cerberus has noticeably more health => good protection against magic.
и точно не тот,
кто воюет со мной.