During a match, if a player uses a card they mistakenly believe to be legal, are they committing Fraud?

The situation described involves a player mistakenly using a card they believe to be legal. The key factor in determining whether this constitutes fraud is the intent of the player. Fraud typically involves a deliberate attempt to deceive or gain an unfair advantage through dishonest means. In this case, if the player genuinely believes the card is legal and there is no intention to deceive their opponent or the judge, it does not meet the criteria for fraud.

While it is important for players to be aware of the cards they are using, the absence of malicious intent means that the player is not trying to take advantage of their opponent or the game state. This distinction is crucial in maintaining a fair competitive environment. Misunderstandings regarding card legality can occur and are generally treated as mistakes rather than fraudulent actions. Therefore, assessing intent plays a significant role in this scenario, supporting the conclusion that the player is not committing fraud.