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I'm troubled by one situation. On one side, there are Necropolis creatures (either a camp or from a hero), and on the other, a Fortress on a hill. Jeez... the Necropolis castle doesn't generate on it. There's the possibility to upgrade, but not to use it. I consider them a special unit and suggest making an exception only for them, allowing upgrades on any map templates, even without the presence of a castle.
Стрим это понты. Cтримишь, знай что твой стрим смотрят, точнее ты стримишь, чтобы смотрели, они и смотрят. Или стримы нельзя смотреть? (c) Chinqis