What skills should Necromancers take when facing Orcs on a very large map?

Hmm, interesting, young man. And if it's not a secret, how many castles did the Orc and Necropolis factions have, and was there any subjugation involved? Could you provide more details? I myself play as Necropolis and have played against Orcs. They are difficult to defeat. But I wouldn't say it's "hopeless."