"Conviction" is a card from the Magic Mystery Booster set in Magic: The Gathering, featuring an Unknown rarity. Currently valued at approximately $0.20, it appeals to players looking for budget options in enchantments that enhance creature combat. As part of a unique set, it adds diversity to collections and gameplay strategies, although its lower market value reflects its accessibility rather than rarity. Collectors may find it useful for casual play or as a filler in themed decks.