Z/X Extra (ゼクス エクストラ Zekusu Ekusutora) is one of the card types in Z/X - Zillions of enemy X- TCG. Z/X Extra cards were introduced in Booster 16: Code:Dingir - Encounter with Dynamis, and are treated as regular Z/X during the game. Unlike regular Z/X, they are put into the Dynamis instead of regular deck. A player is able to play a Z/X Extra from his or her Dynamis once per turn during their Main Phase by fulfilling the Advent Condition (降臨条件 Kōrin Jōken) or Awaken Condition (覚醒条件 Kakusei Jōken) of that Z/X Extra. Playing a Z/X Extra into the Square follow the same rule as regular Z/X.