The 2017 Pokemon Mewtwo GX 39/73 Full Art card from the Shining Legends set is a highly sought-after collectible in the Pokémon TCG world. As a Black Star Promo card featuring the powerful character Mewtwo, this GX card is a rare and valuable addition to any collection. With its striking full art design and limited availability, this card is a popular choice among collectors and fans of the Pokémon franchise.