Z/X Extra

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 is 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 these conditions:
 * The number of cards in his or her Resource is equal to or greater than the Cost of that Z/X Extra.
 * He or she is able to fulfill the Advent Condition of that Z/X Extra.

If a Z/X Extra left the Square due to any circumstance (e.g. destroyed or moved into another zone), that Z/X Extra is put into the Dynamis in face up position instead per Extra Effect. In addition, a face up Z/X Extra in Dynamis cannot be played at all.

As of now, Z/X Extra also hold the distinction as the only card type with cards that possess more than one color.

Advent Condition
Instead of paying their Cost like regular Z/X, Z/X Extra is played by fulfilling their Advent Condition (降臨条件 Kōrin Jōken). The Advent Condition is fulfilled by destroying your own Reboot Z/X in Square that correspond to the condition written in the text, with the total Cost of the destroyed Z/X being equal or higher than the Cost of the Z/X Extra.

For example, if a player want to play "The All-Known Ruler, Gilgamesh", he or she need to have 7 or more cards in his or her Resource, and fulfill the Advent Condition by destroying 2 of his or her own Reboot Red Z/X in Square whose total Cost equal to 7 or greater. The Z/X that need to be destroyed for the Advent Condition can either be:
 * 1 Reboot Cost 3 Red Z/X and 1 Reboot Cost 4 Red Z/X, or
 * 1 Reboot Cost 2 Red Z/X and 1 Reboot Cost 5 Red Z/X, or
 * 2 Reboot Cost 4 Red Z/X and so on.

After the Advent Condition is fulfilled, the Z/X Extra card is played into the Square. Playing a Z/X Extra into the Square follow the same rule as regular Z/X.