Rottenmouth Viper - Foil - Prerelease Promo Tweet Out of stock. Wishlist Details Color: Black Rarity: P Cost: 5B Pow/Tgh: 6/6 Card Type: Creature - Elemental Snake Artist: Andrea Piparo Name: Rottenmouth Viper Finish: Foil Card Number: 0107 Set Name: Bloomburrow Prerelease Promo