NHF – new heroes for Heroes V 3.1.

The point is that they should run away; they need to be made friendly.

Really? I think courage and friendliness are two different parameters. So, a monster might not join, but it can run away. Or vice versa, run away but not join. However, I'm more confident in the second scenario than the first, but who knows... I would test it, just in case it works.