43

In general, your opponent cannot conclusively verify that your deck is legal. As you mention, you can always concede to prevent them from seeing certain cards. However, this statement that you made in your question is incorrect: since one can never prove that I'm cheating, one can't call a judge either Players can call a judge for any number of reasons, ...


16

The key phrase in that rule is in the first sentence: A player uses or offers to use a method that is not part of the current game (including actions not legal in the current game) to determine the outcome of a game or match. Importantly, it is not a violation of this rule to take an action that is legal in the current game to determine a winner. For ...


12

The assumption is people are playing with legal decks - this is enforced at higher rules level events by random deck checks (where players are randomly selected and their decks compared to the decklist they submitted) and being able to call a judge when you find that your opponent's deck is not legal for whatever reason (including a 5th copy of a card) ...


5

You should pretty much always call a judge when something weird like that happens. Don't think of this as starting a confrontation with the judge or with your opponent - judges are simply the experts in how to fix weird things, and in doing so such that both players will usually think they were treated fairly. That said, if you called the judge over, they ...


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