Yu-Gi-Oh! Wiki
Yu-Gi-Oh! Wiki
Main Deck

A Main Deck in the anime
A Main Deck in the anime

Japanese (ruby)


Japanese (romanized)

(Mein no) Dekki


(Main) Deck

The Main Deck (Japanese: メインのデッキ Mein no Dekki), usually simply referred to as the Deck (デッキ Dekki), is a pile of cards that a Duelist can draw from. Each Duelist uses their own Main Deck in a Duel.


When constructing a Deck, Monster, Spell and Trap Cards are placed in the Main Deck. Fusion, Synchro, Xyz and Link Monsters are placed in the Extra Deck. If a player uses official Monster Token or Counter cards, these are to be stored in a separate location as well.

When a Duel begins, the Main Deck is placed face-down in the Deck Zone of the field. All cards in the Main Deck must remain face-down during the Duel, and neither player may view the contents of either player's Deck unless a card effect allows them to, after which the Deck must be shuffled.

Even if a card in the Deck is face-up, it cannot be looked at by either player unless it is on top of the Deck, in which case it is public knowledge.

Main Deck construction restrictions[]

Constructed Deck formation for Normal Duel[]

Speed Deck formation for Speed Duel[]

  • The Main Deck must be constructed using only card product provided at the event.
  • The Main Deck can have a minimum of 20 cards. (Monsters, Spells, & Traps) There is maximum of 30 Cards.
  • The Extra Deck can have a minimum of 5 Fusion, Synchro, Xyz, and/or Link Monsters
  • A Duelist may include 1 to 3 copies of any card they like.