ASW – Alternative hero leveling.

City classes only change the native school of magic; you're doing the same thing. By saying that city classes are a separate topic, you're automatically saying that changing the native school is also a separate topic, but you're suggesting it... Strange... very strange.

Don't you see the difference between upgrading and the guild of the starting city?
The native school is the one that is primarily supported by upgrades (chances). And city schools are a separate topic.
For example, why would I need your tricks with cities if, in the first few weeks, I capture several other cities and easily get in the guilds what wasn't in the starting city (for example, Light for a demon)? Or learn these spells on the map? It will be easier and faster than returning to the first city.

Added 3 minutes ago

Summoning is not necessary, because it's already good without it. Or do you need an overpowered unit?

Overpowered means something that plays too strongly, right?
I need the schools in which it plays stronger. That is, the ones that best suit its gameplay, that most correspond to its nature.
And questions of overall balance (where to increase, where to reduce) are already a separate topic. Reduce the blue archers to an adequate level, and it will be beneficial.

The problem with your projects is that they are done in pieces. You can't rely on the balance being maintained in each of them separately. To achieve overall balance, you need a general mod (like TE, for example). The balance requirements in ASW are the balance of upgrades, not the overall balance of power. In practice, any of your changes affects the overall balance. And in the most unpredictable way.


Added 1 minute ago

You're saying that I shouldn't do this anymore, but that I'm obliged to, which is fundamentally wrong.

I don't see any logic.