|YU-GI-OH! DUELING TIP|
SIDE DECK BASICS
With every Deck, you can have a Side Deck of exactly 15 cards. After each Duel in a Match, you can change your Deck using your Side Deck. You can take any card from your Side Deck and place it in your Deck, but you have to place a card from your Deck into your Side Deck at the same time, so that the Side Deck always has exactly 15 cards. If a card is Limited to 1 copy, you can only have 1 copy between your Deck and Side Deck combined. You can not have 1 copy in your Deck and another in your Side Deck. - click here for another Dueling Tip.