{{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 as shown in the anime.]]A Duelist's The '''Main Deck''' is the pile of at least 40 to 60 cards (although there was originally Japanese: メインのデッキ ''Mein no upward limitDekki'') that is placed on the [[Deck Zone]]. The Main Deck is, essentially, all usually simply referred to as the cards the Duelist will be playing with in a Duel. This '''Deck may contain all of the [[Trap Card''' (デッキ{{NoteTag|Trap]], [[Spell Card|Spell]] and [[Monster Card]]s one Duelist may be using with Sometimes written as "山札" in the exception of [[Fusion Monster]]s, [[Synchro Monster]]s, anime and [[Xyz Monster]]s which are placed on the opposite end of the main Deck Zone in the [[Extra Deck]]manga. Whenever }} ''Dekki''), is a card effect is activated pile of cards that lets you search your Deck and select a card(s) to place in your [[handDuelist]], on the can [[Playing FieldDraw a card|fielddraw]] from during play. Each Duelist uses his or her own Main Deck in the [[Graveyard]], you should always [[shuffle]] your Deck to maintain fair playa Duel.

The When constructing a Deck, [[Monster Card|Monster]], [Extra [Spell Card|Spell]], and [[Trap Card]]s are placed in the Main Deck. [[Fusion Monster|Fusion]], [[Synchro Monster|Synchro]], [[Xyz Monster|Xyz]] , and [[Side Link Monster]]s are placed in the [[Extra Deck]] each have an upward limit of 15 . If a player uses official [[Monster Token]], [[Counter]], or [[Field Center Card|Field Center]] cards. Neither counts towards the count of the Main Deck, these must be stored separately as well.

Most When a [[Duel]] begins, the Main Decks contain approximately 40 cards since 40 Deck is placed [[face-down]] in the minimum amount [[Deck Zone]] of cards a Deck must have in order to be legal (not including the [[field]]. All cards in the Extra Main Deck). Most experienced Duelists will argue that you should stick to must remain face-down during the minimum because it increases the chances of you drawing your best cardDuel (s). Also another point of view says that unless a large Deck with cards that allow you to draw the ones you need, like: "card [[Terraformingeffect]]" or like "[[Dark Magic CurtainConvulsion of Nature]]" can also work wellsays otherwise). If During a Duel, neither player may view the contents of either player's Deck focuses on one strategy and it holds no real critical cards for it workunless a card effect allows them to, like after which the Deck must be [[shuffle]]d. Even if a card in the Deck is [[Burn Deckface-up]] perhaps, then a lot of cards can it cannot be helpful for more 'ammo'. Certain searcher cards like "[[Mystic Tomatolook]]" or "ed at by either player unless it is on top of the Deck, in which case it is [[Gold Sarcophaguspublic knowledge]]" are also more powerful in a 60 card Deck.

Rulings from == Construction restrictions ===== ''TCG''/''OCG'' ===* The Main Deck must contain only [[Legal]] cards.** [[Extra Deck]] cards cannot be placed in the Main Deck.** [[Monster Token|Token]], [[Counter]], and [[Field Center Card|Field Center]] cards are not placed in any Deck. ==== Master Duel ========= Constructed Deck format =====* The Main Deck must contain 40 to 60 cards.* Up to three copies of any [[Unlimited]] card can be included across the player's Main Deck, [[Side Deck]], and [[Extra Deck]] (combined).** Up to 1 of each [[Limited]] card and up to 2 of each [[Semi-Limited]] card may be included in the player's Decks. [[Forbidden]] and [[Illegal]] cards cannot be included.** Cards that are [[KonamiPermanently treated as alternate name|permanently treated as having a different name]] states are considered to be the 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 those names. ===== [[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 included in the player'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, [[Side Deck]], and [[Extra Deck]] (combined). Additionally, the player can include up to one Skill Card with their Deck (although Skill Cards are not placed below in a Deck).** Up to one [[Limited 1]] card (in total), two [[Limited 2]] cards (in total), and three [[Limited 3]] cards (in total) can be included in the line player's Decklist, including their Skill Card.* The Main Deck must contain 20 to 30 cards.** Even in Speed Duel Sealed Format, the Main Deck must still contain 20 to 30 cards.<ref>[https://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] (March 11, 2022): IV. Sealed Deck Information</ref> === [[Yu-Gi-Oh! Rush Duel]] ===* The Main Deck must contain only ''Yu-Gi-Oh! Rush Duel'' cards.** [[Fusion Monster]]s cannot be placed in the 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, also you cannot turn it sideways [[Side Deck]], and [[Extra Deck]] combined.** 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 so on[[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 =={{factNoteFoot}} == References ==<references />