L5R LCG: For the Empire Exp. - Rules of Play says:
Take to the battlefield with For the Empire, the first Dynasty Pack in the Inheritance Cycle for Legend of the Five Rings: The Card Game! This Dynasty Pack focuses on the brave Bushi who fight for their clans on battlefields strewn with blood and dirt. Furthermore, look for the introduction of the new disguised mechanic, which sees hidden iconic samurai take on the identities of unassauming non-unique characters, only to reveal their true skill and ability at the most opportune moment. All of this and for awaits you in For the Empire!