NHF – new heroes for Heroes V 3.1.

It's not hard to guess. If you want to know everything in detail, play the game.

Personally, I don't want to. I simply have a negative attitude towards such descriptions. Not everyone will want to spend their personal time just to find out how something actually works. But if an unknown surprise pops up in an important game (because the author didn't bother to describe it properly), that's definitely not good.

Is this a guessing game? People are different, their experience is different, and therefore different conclusions can be drawn from such descriptions.

What prevents accumulating fairies for ALL allied ents in this case? It says, "any ent." Is that for a reason?
Or accumulate and accumulate, and then, when a slot becomes available, dump a bunch of fairies for several days at once? A similar system worked in Heroes 4, if I remember correctly.

Added 3 minutes later

Why aren't we criticizing other specialists that are also not specified? Or is everything fine there?

Why should we? The example of one should make it clear that clarity is needed. And I didn't review the others; I saw a new one and left a comment.