Mewtwo δ is a Rare Holo variant card from the Delta Species set, designated as card #12. Known for its unique Psychic/Metal typing, this card holds significance among collectors due to its striking artwork and gameplay mechanics. Currently valued at $261.49, it reflects the ongoing interest in vintage Pokémon cards, particularly those with Holofoil features. Graded examples may fetch higher prices, depending on their condition and market demand.