NHF – new heroes for Heroes V 3.1.

Ah, I read that friendliness means they will join, well, okay, but generally speaking, do they really join? And what if you use diplomacy?

In a game on a small map, I managed to recruit three units. And since the hero can easily acquire the Death Messenger skill, the unit is immediately converted into undead.
On a large map, the hero will be much more useful.
Everything about Diplomacy is described in the game documentation.