Cathedral Membrane [Foil] is a card from the Magic: The Gathering set New Phyrexia, classified as Unknown rarity. Currently valued at $1.70, it appeals to collectors for its unique foiling and thematic ties to the set's lore. While not a staple in competitive play, its niche utility and aesthetic appeal contribute to its market presence. As the game evolves, its value may fluctuate based on demand and collector interest.