# Furnace Layer Furnace Layer is a plane card from Planechase Anthology, existing in the niche category of supplemental Magic products. Collectors view plane cards as curiosities rather than competitive staples, valued primarily for set completion or Planechase format enthusiasts. This common nonfoil version holds minimal monetary value, making it an accessible entry point for those building Planechase collections. The card's appeal lies in its unique mechanical role—planes function differently than regular Magic cards, creating distinct appeal among format specialists. Most collectors encounter it as part of a complete Planechase set rather than seeking it individually. Its common rarity and straightforward availability mean serious collectors rarely prioritize hunting specific copies.