Heroes 5.5 WarGame Edition - Tactical Edition.

I was just writing about vampirism, and also about raising the dead – in my opinion, this is purely a Necropolis thing. For example, it doesn't seem right for a Sylvan elf to take someone and turn them into undead, but now I'm going to implement this by distributing different races with suppression of one or another magic (specifically, Sylvan elves will be able to upgrade light, summoning, and chaos, but I'll replace dark magic with suppression of darkness for them because it's not appropriate).

Actually, raising the dead (or reanimating in the mod) doesn't turn anyone into undead. It provides a temporary extension of life. The unit's properties, stats, and morale do not change. It can perfectly fit into an elf's strategy in combination with regeneration (while, for example, Necromancers don't have it). Reanimation partially restores the killed stack, and regeneration revives the remaining units permanently.

But we've already strayed from the topic; everyone can have their own opinion.