Would you like to play as a Necromancer with the ability to upgrade Vampires?

That's right, you can break a lot of "Hive" structures with their help, which will greatly simplify your task, and then you can visit the human player.

I'm all for not making radical decisions in the heat of the moment. We need to test everything thoroughly, perhaps organize a fun tournament, for example, where one player always plays as a Necromancer against any other faction, and vice versa. We need to try it out, get a feel for it, and then make a decision. It's not necessary to make changes on the fly. IMHO.