The product is a rare Pokémon card featuring Mewtwo, from the Wizards of the Coast era of the Pokémon Trading Card Game. This specific card is a Black Star Promo with a Psychic attribute, illustrated by Benimaru Itoh in 2000. It is a standard-sized Pokémon card and is part of the early promotional cards released for the Pokémon TCG. This highly sought-after collectible is in near mint or better condition, making it a valuable addition to any Pokémon card collection.
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