# Undermine Undermine represents a key moment in Magic's design philosophy around counterspells. This blue-black rare from Invasion offers something straightforward: counter a spell and make the opponent discard a card. The effect combines two powerful effects without being overly complicated, which appealed to players across skill levels. Collectors appreciate Undermine for its clean utility in constructed formats and its role in limited play during the Invasion block era. The card exists in both nonfoil and foil versions, with foils being notably scarcer due to Invasion's foil production levels. Neither variant commands particular attention from investors, making Undermine a solid pickup for players building period-appropriate decks rather than a chase card.