Necropolis or Castle (Which one is stronger?)

I noticed it, or maybe it’s just a glitch, that dragons more often age creatures of level 7, and throughout the game, the Archangel is the most susceptible to aging. Dragons aren’t particularly valuable, and I often use them to attack Archangels – just in case they get aged? And then it’s game over! Well, what else? Then Dreadnoughts, Vampires, and a couple of thousand skeletons join the battle. Skeletons aren’t valuable either; after such a battle with humans, I’ll raise even more skeletons. In general, defeating humans with Necropolis is not a problem; let’s discuss how to defeat Necropolis with humans.