Main Deck

, which is simply referred to as "Deck" by card effects. The term "Deck" refers to both the main deck and the zone in which the cards in the Deck start out at the beginning of the game. The order of cards in the Deck is unknown to both players, except by card effects.
== What is a Legal Main Deck? ==
In order for your Main Deck to be legal it must:
* Contain exactly 50 cards.
* Contain no Digi-Egg cards.
* Contain no more than four copies of cards with the same card number.
== Rulings ==
=== Deck Creation ===
=== Deck Zone ===
== Sources ==
*Official Q&A General Rules EN (21/05/21)
#Card Rulings:BT1-078