Added 29 minutes later
On the other hand, should we try to standardize everything? In the original game, armies differ in the number of ranged units (from 1 in Inferno to 3 in Academy) and in the number of flying units (from 1 in Dwarves to 3 in Necropolis). Currently, I plan to give demons one ranged unit, add cavalry to the undead, and so on – in principle, this can be presented as faction-specific features – a weakness in one area, but strength in another – as long as the balance isn't affected. Giving and leveling abilities within a single unit, in my opinion, is not the right approach – we need to consider the overall picture for the faction.
Блистает там воздушностью прогалин.
Но между кедров, полных тишиной,
Расщелина по склону ниспадала.
О, никогда под бледною луной
Так пышен не был тот уют лесной...