NHF – new heroes for Heroes V 3.1.

Hmm... I've seen a Death Knight in the neutral faction many times, but I've never seen a Black Knight in a game – only some files in data.pak.
Maybe we misunderstood each other – the Death Knight (texture color black and red, #90) exists in the neutral faction and is often used, but the Black Knight (texture color black, #89) is not used at all (I haven't seen it in either custom maps or standard maps). If it were used, that would be one thing, but when it exists and no one has seen it, you can say that it doesn't exist at all – please provide an example of which map you saw it in – I will specifically remove all mods and maps from the game and try to see it in the original game.