Karn's Bastion - Foil - Prerelease Promo Tweet Out of stock. $3.03 Wishlist Details Color: Land Card Text: T: Add C.4, T: Proliferate. Rarity: P Card Type: Land Artist: Adam Paquette Name: Karn's Bastion Finish: Foil Card Number: 248/264 Set Name: War of the Spark