{{Redirect|Deck|the type of set|Starter Deck|and|Structure Deck|a list of Deck sets|Template:Decks}}[[File:Main_DeckMain Deck.png|thumb|A Main Deck in the anime.]]A Duelist's The '''Main Deck''' is (Japanese: メインのデッキ ''Mein no Dekki''), usually simply referred to as the pile of cards that is placed on '''Deck''' (デッキ{{NoteTag|Sometimes written as "山札" in the [[Deck Zone]]anime and manga. The Main Deck }} ''Dekki''), is, essentially, all the cards the Duelist will be playing with in a Duel. This Deck contains all pile of the cards (that a [[Trap Card|TrapDuelist]], can [[Spell CardDraw a card|Spelldraw]] and [[Monster Card|Monster]]) that the from during play. Each Duelist may use, excluding [[Fusion Monster|Fusion]], [[Synchro Monster|Synchro]], and [[Xyz Monster|Xyz]] monsters, which are kept uses his or her own Main Deck in a seperate "[[Extra Deck]]"Duel.

Most card effects that allow you search your When constructing a Deck , [[Monster Card|Monster]], [[Spell Card|Spell]], and select one or more card([[Trap Card]]s) normally include are placed in the Main Deck. [[Fusion Monster|Fusion]], [[Synchro Monster|Synchro]], [[shuffleXyz Monster|shufflingXyz]], and [[Link Monster]] your s are placed in the [[Extra Deck]]. If a player uses official [[Monster Token]], [[Counter]], or [[Field Center Card|Field Center]] cards, this is to maintain fair playthese must be stored separately as well.

To be legalWhen a [[Duel]] begins, the Main Deck must be between 40 to 60 is placed [[face-down]] in the [[Deck Zone]] of the [[field]]. All cards with most decks containing approximately 40 cards. Most experienced Duelists will argue that you should stick to in the minimum because it increases Main Deck must remain face-down during the chances of you drawing your best cardDuel (s). Another point of view is that unless a large Deck, with cards that allow you to search out ones you need ("card [[Terraformingeffect]]" or like "[[Dark Magic CurtainConvulsion of Nature]]"says otherwise) may also work well. The more cards you include in During a deckDuel, neither player may view the more variety you can get from contents of either player's Deck unless a single deckcard effect allows them to, allowing you to possibly change strategy without much difficulty and maintain that changeafter which the Deck must be [[shuffle]]d. The downside Even if a card in the Deck is [[face-up]], it cannot be [[look]]ed at by either player unless it is on top of this is the deck may not be consistentDeck, and a bad hand in which case it is inevitable[[public knowledge]].

Larger decks usually contain multiple copies of the same card, as to increase the chances of drawing that card, while smaller decks == Construction restrictions ===== ''TCG''/''OCG'' ===* The Main Deck must contain only one to two copies, as they are not critical to maintaining a strategy[[Legal]] cards. Larger decks tend to not rely on ** [[Extra Deck]] monsters, instead having most of their strategy cards cannot be placed in what they search for / draw from the deck itselfMain Deck. Certain cards like "** [[Mystic TomatoMonster Token|Token]]" or ", [[Gold SarcophagusCounter]]" , and [[Field Center Card|Field Center]] cards are also more useful not placed in a larger any Deck, searching out and bringing to the field / hand for easy use.

Smaller decks are more easily stopped by ==== Master Duel ========= Constructed Deck format =====* The Main Deck must contain 40 to 60 cards.* Up to three copies of any [[Mill|MillingUnlimited]] strategies, as card can be included across the cards lost arenplayer't replaceable s Main Deck, [[Side Deck]], and a duelist may be more likely to [[Extra Deck Out]], losing by default(combined). Smaller decks tend ** Up to focus on one strategy 1 of each [[Limited]] card and up to defeat 2 of each [[Semi-Limited]] card may be included in the opponent more quickly, player's Decks. [[Forbidden]] and rely on Extra Deck monsters [[Illegal]] cards cannot be included.** Cards that are [[Permanently treated as alternate name|permanently treated as having a different name]] are considered to be the bulk same as that card for deck construction. Cards that are [[Treated as multiple names|permanently treated as having multiple names]] are counted as all of their forces, supporting them with a few Trap Cards and using Spell Cards to further their strategy and controlthose names.

However, larger decks are less predictable, which ===== [[Sealed Format]] =====* The Deck must be constructed using only card product provided at the event.* The Main Deck can have a minimum of 20 cards. There is no maximum size.* There is no limit on the number of cards with the same name that can be beneficial or disadvantageous to both included in the player and the opponent. Also, large decks are highly unfavorable in [[Tournament|competitive play]] due to their unpredictability's Decks.

==== [[Speed Duel]] ====* The Deck may only contain cards with the [[Speed Duel Logo]].* Up to three copies of any [[Unlimited]] non-Skill Card can be included across the player's Main Deck, [[Extra Side Deck]] , and [[Side Extra Deck]] (combined). Additionally, the player can include up to one Skill Card with their Deck (although Skill Cards are not placed in a Deck).** Up to one [[Limited 1]] card (in total), two [[Limited 2]] each have an upward limit of 15 cards(in total), but neither counts towards and three [[Limited 3]] cards (in total) can be included in the count of player's Decklist, including their Skill Card.* The Main Deck must contain 20 to 30 cards.** Even in Speed Duel Sealed Format, the Main Deckmust still contain 20 to 30 cards. They still follow the <ref>[[Forbidden|limitations that other cards havehttps://img.yugioh-card.com/en/downloads/penalty_guide/Speed_Duel_Addendum_1.2_KDE-US.pdf Official KDE-US Yu-Gi-Oh! TRADING CARD GAME Tournament Policy Speed Duel Addendum]] if they are listed(March 11, 2022): IV.Sealed Deck Information</ref>

Rulings from === [[KonamiYu-Gi-Oh! Rush Duel]] regarding the ===* The Main Deck include:must contain only ''Yu-Gi-Oh! Rush Duel'' cards.*No cards can * [[Fusion Monster]]s cannot be placed below in the line Main Deck.* The Main Deck must contain 40 to 60 cards.* A Duelist may not have more than three copies of your any [[Unlimited]] card included in their Main Deck, [[Side Deck]], and [[Extra Deck]] combined.*You cannot turn it sideways* If a [[Forbidden]], [[Limited]], or [[Semi-Limited]] List is used, the number of copies must not exceed those requirements.* The Main Deck and Extra Deck combined can contain a maximum of 1 Legend Card of each card type ([[Monster Card|Monster]], [[Spell Card|Spell]], and [[Trap Card|Trap]]).<ref name="YGOrg 10-31-22">{{cite web | url = https://ygorganization.com/rush-duel-change-to-how-legends-work/ | title = <nowiki>[RUSH DUEL] Change To How Legends Work</nowiki> | author = NeoArkadia | website = The Organization | date = October 31, 2022 | accessdate = October 31, 2022}}</ref> == In other languages =={{In other languages| fr_name = Main Deck| de_name = Main Deck| it_name = Main Deck| pt_name = Deck Principal| es_name = Deck Principal| ja_name = メインのデッキ| ja_romaji = Mein no Dekki| ko_name = 메인 덱| ko_rr = Mein Dek| tc_name = 牌組| tc_pinyin = Páizǔ|sc_name=主牌组|sc_pinyin=Zhǔpáizǔ}} == Notes =={{NoteFoot}} == References ==<references />