Main Deck

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Main Deck, often referred to simply Deck (デッキ, Dekki), is a pile of player's cards (Monster, Spell or/and Trap Cards) that prepared to draw cards from it during the play.

Fusion, Synchro, Xyz and Token Monsters cannot be included in it.

All its cards have to be face-down during the Duel.

Rules of Creating Main DeckEdit

With a lot of cards to choose from, you can create and customize your own Deck with your favorite cards. However, you should make sure you know the format of the game, and ensure you are adequately prepared.

On Constructed Deck Format:

Main Deck must have only Legal cards.
It must have a minimum of 40 cards, and a maximum of 60 cards. Only the cards in the Main Deck count towards this total.
A Duelist may not have more than three copies of any Unlimited card included in their Main Deck, Side Deck, and Extra Deck combined.

If a Forbidden, Limited, or Semi-Limited List is used, the number of copies must not exceed what in the List.

On Sealed Deck Format:

Main Deck must be constructed using only card product provided at the event.
It must have a minimum of 20 cards, the size may be raised to a higher number, but the size should never be below 20. There is no maximum size.
A Duelist may include as many copies of any card he or she likes, even more than three.

Gameplay and terminology

Basic

Card types

Monster	Normal Effect Fusion Ritual Synchro Dark Synchro^† Xyz

Spell	Normal Continuous Field Equip Quick-Play Ritual Speed Spell

Trap	Normal Continuous Counter

Other	Equip Trap Field Trap Trap-Spell Normal Continuous Trap Field Monster Virus Field

Turn phases

Intermediate

Game
mechanics

Card layout	ATK DEF Level/Rank Attribute Type Set Number Card Number Effect or flavor text Eye of Anubis Hologram Limitation Text QR code

Decks	Main Deck Side Deck Extra Deck Fusion Deck

Areas	Hand Graveyard Playing Field Banished Limbo Attached

Other	Duel Match Life Points Damage Battle damage Effect damage 3 Card Rule Spell Speed Face-up Face-down Battle position Attack Position Defense Position Hand size limit Activate Chain Cost Counter Target Resolve

Zones

Summoning
mechanics

Advanced

General	Summon Negate Battle position changes Flip Send Destroy Detach Discard Tribute Return Banish Attach Equip Unequip Add a card Draw a card Look Pick up a card Reveal Shuffle Suicide

Monster effect types	Condition Continuous Flip Ignition Quick Summon Trigger Compulsory Optional Lingering

Spell Speeds	Spell Speed 1 Spell Speed 2 Spell Speed 3

Expert

General/ Tournament guidelines	Activation & Targeting Eligibility Simultaneous Effects Go On Chain Returning Activated Cards Maintenance cost Quick-like Effect Trigger-like Effect Ignition-like Effect Fast Effect Timing Priority Summon negation window Summon response window Post-Resolution Window Breakdown of the Battle Phase Piercing Engine Field advantage Hand advantage Victory condition FTK OTK Lockdown Infinite Loop Missing the Timing Replay Problem-Solving Card Text Simplified Effect Text Status Possess Spell Monster Trap Monster Double Tributer Fusion Material Monster Fusion Substitute Monster Synchro Material Monster Synchro Substitute Monster Xyz Material

Attributes	DARK DIVINE EARTH FIRE LAUGH LIGHT WATER WIND

Types	Aqua Beast Beast-Warrior Charisma Creator God Dinosaur Divine-Beast Dragon Fairy Fiend Fish Insect Machine Plant Psychic Pyro Reptile Rock Sea Serpent Spellcaster Thunder Warrior Winged Beast Zombie Archetype Human^† Immortal^† ? ?? ??? Black Magic^† White Magic^† Illusion Magic^† Series

Secondary types	Toon Spirit Union Gemini Tuner Dark Tuner^† Armor^† Plus^† Minus^† Plus Minus^†