Osteomancer Adept - Foil - Prerelease Promo Tweet Out of stock. Wishlist Details Color: Black Rarity: P Cost: 1B Pow/Tgh: 2/2 Card Type: Creature - Squirrel Warlock Artist: Daniel Zrom Name: Osteomancer Adept Finish: Foil Card Number: 0103 Set Name: Bloomburrow Prerelease Promo