NHF – new heroes for Heroes V 3.1.

I suggest a special ability for the Demon:
When all the army dies in a battle against an enemy hero, several Archdevils appear on the battlefield. Their number is calculated using the formula: Hero's Attack * number of Devils or their upgrades in the army / 40

And for the Necromancer:
If the Necromancer loses in a battle against an enemy hero, he is reborn at his castle with part of his army. (I haven't figured out how to calculate this part). He doesn't need to be bought in the tavern. All his levels, skills, and abilities remain unchanged. But this special ability only works once.