You're only hurting yourself.
I'm not taking them all out at once... but gradually...
There won't be many fewer Imps. Necromancy is designed to raise Vampires, or at least Ghosts, and Skeletons are just a short, intermediate stage. And running around with them is not ideal for movement speed.
Of course, I don't plan to run around with them throughout the entire game.
But some units are needed in many situations, while others are just a temporary addition. Therefore, some are more useful than others.
There is no defense against a hammer... unless you have another hammer... :smile25: