A common direct-damage instant from Magic: The Gathering, Shock appears in the Core Set 2021 (card #159) and is listed with an Unknown rarity. Collectors encountering this copy can expect a basic staple often used in casual and limited play rather than high-value collecting. Current market value sits at about $0.05, reflecting broad availability and frequent reprints. Grading and sales details, if available, will further distinguish condition-dependent prices.