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Whether it's a perversion or not, it does happen. Why not use a tank, there's probably more than one Necropolis on the map. Even if he doesn't gather an extra thousand skeletons, I think the two thousand assembled by the Necromancer heroes will already defeat everyone. :)
Archangels give a bonus only to Castle units; for the rest, they take away what they gave just as quickly. The artifacts are on par. In total, we have an advantage if the army is of one type.
The artifacts are equal. I agree. I just made a mistake! However, when the army is of one type, you can equip an artifact with +1 morale, and it will be fine. It seems to me that most often the army consists of two types, so you can upgrade them, but this is for those who like it... and in general, there are other, more interesting, secondary skills.



