- Баги в Heroes 3

Try to get... In my opinion, there is no Necromancy in huts at all, since all necros have this skill and there's no point in giving it. And they don't give it in the magic school. (highlighted in red). In short, even by logic and meaning, it's a bug.

In terms of meaning - it is a bug. And on random maps, this moment will not appear, because by default the Wizardry (Necromancy) skill is blocked in huts. In the magic school, this skill appears, but it is available only for Necromancers, which as you correctly pointed out - is absurd, because they already have this skill.

However, when creating a map, the author can independently configure the Scholar or Hut in such a way that Necromancy will be given there, and any hero will be able to obtain it...