Kitsune, in the Necropolis campaign, I also turned people into undead. But here, it's much more effective to use native troops with each hero. Moreover, there are 2 full-fledged native castles. Besides, Faidaen's specialization only works with native archers. Also, before the battle, he eliminates almost all enemy archers. And the undead don't go to waste – they are with another hero. And a non-native hero also reduces the morale of the army. Moreover, he is from a hostile race. And the elven troops are good in themselves. Can you compare a Necropolis dragon to an emerald one?