A Imperial Decree is a special form of boost that the emporor can choose.
- Tyranny 10% of all resources gathered in the realm are taken as a tax and the Emperor receives a cut. Trading Post have -1 trade offer(s) and Throne of Might attackers get -30% Army Attack.
- Court Advisors
- Trade Levy Lifted Trade march size +75%.
- Naval Expeditions Mysterious Waters begin to spawn on water tiles.