Corpse Knight is a creature card from the Promo Pack: Core Set 2020 in Magic: The Gathering, classified as Promo rarity (#206). Valued at approximately $1.81, it features a unique ability that triggers when creatures enter the battlefield, dealing damage to opponents. Collectors appreciate its distinctive artwork and gameplay relevance, contributing to its market presence. As a promotional card, it appeals to both players and collectors seeking to enhance their decks or collections.