Repair Hero

He does not count toward the five hero limit. You put him in a city. You tell him what to repair or build new. You tell him the percentage of resources he is to extract per hour to amass enough for each project he is repairing/building. You also tell him where to move to next once he is done.

When he fills your repair/build order, and moves to his next assigned city, he lights up on the map so you know to assign him what to repair/build in that city.

If his assigned next city is unavailable, he moves to your capital and lights up.

The more he is upgraded, the more he can construct new as opposed to repair. He starts out able to repair.