The architect helps you to instantly upgrade recently conquered or bought villages/fortresses to a certain amount of points. This way you save yourselves the manual process of building up small villages.
The feature will only be displayed for recently conquered or bought villages/fortresses which have not reached a certain limit of points yet (100/1600 Points). The functionality will just by displayed in new conquered or bought villages/fortresses when the player has already 10 habitats or more. The feature does upgrade the village/fortress automatically until that limit is reached, increasing the levels of buildings and researches. The usage of the feature requires magic potions.
The feature is only available for a few hours after the new village/fortress has been acquired.