The Mereoleona Vermillion SR-Union Arena Black Clover UE08BT/BCV-1-042 is a super rare collectible card from the Black Clover franchise. Manufactured by Bandai in the United States, this green card features the character Mereoleona Vermillion and is part of the Union Arena game series. The card is made of card stock with a foil finish, making it a visually appealing addition to any collection. With its unique attributes and rarity, this card is a sought-after item for fans of the Black Clover series.