Duel Masters Wiki
Duel Masters Wiki
シャッフル (Shaffuru)
DM-Wiki: Article

Shuffle is a keyword action.


It is the act of mixing up the cards in your deck so the cards are put in a random order.

Shuffling is done at the start of your game to avoid cheating, or after a card has you search the deck for a specific card.

Your opponent may shuffle your deck for you in some situations and it's legal.


In online duels, shuffling behavior ran by scripts can greatly deviate from shuffling by humans. This happens regardless of any card game and any company who is behind the online duel system, and will often cause multiple duplicate cards in a hand, a total lack of shield triggers in the initial shields despite having over 8 in the deck and sometimes key cards not handed to the player at all.

However if the player loses more than often, there is a problem in their deck building logic,[1] or thie dueling skills are subpar, and at this case it would be safer to blame oneself's skills instead of simply blaming the shuffle.


From the Duel Masters - General Game Rules: Version 1.20 (July 17, 2020)

  • 701.11. Shuffle
    • 701.11a To shuffle a deck or a face-down pile of cards, randomize the cards within it so that no player knows their order.
    • 701.11b Some effects cause a player to search a deck for a card or cards, shuffle that deck, then put the found card or cards in a certain position in that deck. Even though the found card or cards never leave that deck, they aren’t included in the shuffle. Rather, all the cards in that deck except those are shuffled.

From the Duel Masters - General Game Rules: Version 1.20 (July 17, 2020)

  • 701.11. シャッフルする
    • 701.11a 山札や裏向きのカードの束をシャッフルするとは, その中でカードを, どのプレイヤーにも順番が分からなくなるように無作為化することです.
    • 701.11b プレイヤーに山札からカードを探させ, シャッフルさせてからその探したカードを山札の特定の場所に置く効果が存在します.その場合, それらのカードは山札を離れたものとしては扱いませんが, シャッフルには含まれません.また, それらのカードを除いた山札すべてのカードはシャッフルされます.

Related Categories

  • For cards that allow you to search your deck, see Deck Search.
  1. Such as relying on only one mana acceleration method, having less too many high cost cards etc.