Meet the Machine Empire! The Royal House of Gadgetry has arrived to conquer Earth! The Power Rangers will test their mettle against King Mondo, Louie Kaboom, General Venjix, Prince Gasket, and Princess Archerina. With new rules for paired monsters, Gasket and Archerina can be deployed together as a deadly double-act! This is an expansion! Requires Power Rangers: Heroes of the Grid to play.