The Mewtwo Burger King 1999 Burger King 23K Gold Promo Card is a limited edition collectible card featuring the iconic Pokémon character Mewtwo. Manufactured by Burger King in 1999 as part of a Pokémon League event, this metal card with a gold finish is highly sought after by collectors. Illustrated by Ken Sugimori, this vintage card showcases Mewtwo in its basic stage with a holo finish, making it a valuable addition to any Pokémon TCG collection.