An idea: what if units (specifically builders) could also have a knowledge store? That way, a builder trained in a city with the given knowledge could go outside that city and still use the knowledge. It could also open up an interesting vector of attack for spies.
An idea: what if units (specifically builders) could also have a knowledge store? That way, a builder trained in a city with the given knowledge could go outside that city and still use the knowledge. It could also open up an interesting vector of attack for spies.