Memoricide is a rare card from the Magic Online Promos set in Magic: The Gathering, featuring artwork by Erica Yang. It has a current market value of $0.00, reflecting its accessibility in the collector's market. As a strategic tool in gameplay, Memoricide allows players to target and exile cards from an opponent's library, making it a notable addition for those interested in control strategies. Its rarity status may appeal to collectors despite the current low valuation.