Fallen Knight

The map is quite good, but a major drawback is the constant, sudden appearance of large armies. In the final battle, I simply turned off the game after 4 or 5 stacks of 50 angels appeared.

It's a boss, after all. It's quite possible to beat him (tip: you can just accumulate resources). Anyway, thank you for the walkthrough and feedback!
I hope you will still manage to beat the boss and watch the final cutscene.