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Extra Deck


EX (エクストラ) デッキ[Notes 1]
Formerly: (ゆう) (ごう) デッキ

Japanese (ruby)

Formerly: ゆうごうデッキ

Japanese (base text)

Formerly: 融合デッキ

Japanese (romanized)

Ekusutora Dekki
Formerly: Yūgō Dekki


Extra Deck
Formerly: Fusion Deck

The Extra Deck (Japanese: エクストラデッキ Ekusutora Dekki; usually abbreviated EX (エクストラ) デッキ since Code of the Duelist), formerly known as the Fusion Deck ( (ゆう) (ごう) デッキ Yūgō Dekki), is a Deck where Fusion, Synchro, Xyz, and Link Monsters (as well as Pendulum Monsters that would otherwise have been sent from the field to the Graveyard) are stored during a Duel.


The Extra Deck is separate from the Main Deck, and contains combinations of Fusion, Synchro, Xyz, and Link Monsters. During the game, it is placed face-down in the Extra Deck Zone, and a player can Special Summon Monsters included in there.


The Extra Deck has a maximum size of 15 cards (including all Fusion, Synchro, Xyz, and Link Monsters combined). Per the "Maximum of 3 Rule", during Deck construction there can be at most 3 cards with the same name in a player's Main Deck, Extra Deck and Side Deck (combined). Usage of Extra Deck is not mandatory by rule.


During a Duel, players can Special Summon Monsters from the Extra Deck through Fusion Summon, Synchro Summon, Xyz Summon, Pendulum Summon, Link Summon, or any other cards that Special Summons from Extra Deck. It is not necessary to shuffle the Extra Deck, even when a card specifies that the card would be shuffled into the Deck.

If a Fusion Monster, Synchro Monster, Xyz Monster, or Link Monster would be returned to the hand or Main Deck, it is instead returned to the Extra Deck (face-down), since Fusion Monsters, Synchro Monsters, Xyz Monsters, and Link Monsters cannot exist in the hand or the Main Deck.

Pendulum Monsters[]

Unlike other Monster cards, Pendulum Monsters that would be sent to the Graveyard from the field are placed face-up into the Extra Deck.

Pendulum Monsters placed face-up in the Extra Deck during a Duel can cause the total size of the Extra Deck to exceed the maximum size permitted during Deck construction.

Extra Monster Zone[]

Link Monsters and Pendulum Monsters that are Special Summoned from the Extra Deck must be Special Summoned to an Extra Monster Zone or a Main Monster Zone pointed to by a Link Monster.

Fusion, Synchro and Xyz Monsters that are Special Summoned from Extra Deck may be Special Summoned to either Extra Monster Zone or Main Monster Zone.

In case of Fusion Pendulum, Synchro Pendulum and Xyz Pendulum Monsters, they can be Fusion/Synchro/Xyz Summoned to any zone from face-down. But when Pendulum Summoning them from face-up, they must be Summoned to an Extra Monster Zone or a Main Monster Zone pointed to by a Link Monster.

When Special Summoning from the Graveyard or banished, an Extra Deck Monster must be Summoned to a Main Monster Zone.


The face-down contents of the Extra Deck are not public knowledge, so a player may not look through face-down cards in their opponent's Extra Deck.

The face-up cards in the Extra Deck are public knowledge, so either player may look through them at any time.

The number of cards in the Extra Deck is public knowledge.

Anime and manga[]

Limits on the number of cards that are stored in the Extra Deck in the anime and manga are not yet determined. It is also not clear at all times of the series if the Extra Deck even exists; in many early Duels, the players seem to simply fuse monsters without ever apparently pulling the Fusion Monster card from anywhere.

It is also not clear at all times where the Extra Deck is kept:


  1. The frequently used abbreviated form. Simply substitute the furigana with the Latin letters for the full form.


  1. Yu-Gi-Oh! GX episode 65: "No Pain, No Game"
  2. Yu-Gi-Oh! 5D's episode 4: "A Blast from the Past, Part 1"
  3. Yu-Gi-Oh! 5D's episode 23: "Duel of the Dragons, Part 1"