Prohibition

Prohibition was originally released as a Secret Rare in the 2002 Labyrinth of Nightmare booster set before being included as a common card in the Machina Mayhem Structure Deck in 2010. The card was designed to introduce a high-level strategic counter to specific deck-building archetypes by allowing a player to declare a card name and prevent its use for the remainder of the duel. This mechanic emphasizes the game's focus on meta-game knowledge and tactical foresight.

The card features an illustration reminiscent of classic dystopian or authoritarian imagery, fitting the theme of restriction and control. As a technical tool, it has seen fluctuating levels of competitive relevance throughout the years, often surfacing as a side-deck option when a particular card becomes too dominant in the format. Its inclusion in the 2010 Machina Mayhem deck helped provide budget-conscious players with a versatile tool to navigate the aggressive machine-based meta that defined that era of the game.