# Shrinking Plane Shrinking Plane is a common plane card from the Unknown Planechase set, a supplemental Magic product that introduced the plane card type. Collectors view it as a niche piece of Magic's experimental history rather than a cornerstone card. Its appeal lies primarily in completing Planechase sets or exploring the plane mechanic's design space. The card's common rarity and straightforward mechanics make it accessible but unremarkable. Most collectors encounter it while pursuing the full plane cycle rather than seeking it specifically. Its value to collectors depends largely on their interest in Planechase as a format and their completionist goals within that subset.