The 2016 Pokemon XY Black Star Promo Collector Chest #XY166 M Gengar EX-Holo is a highly sought-after collectible card in the Pokemon TCG universe. As a Black Star Promo card, it holds a special rarity and is part of a limited release set. This version of Gengar features a holographic finish, adding to its appeal for collectors and fans of the Pokemon franchise. Produced by The Pokemon Company, this card showcases the popular character Gengar in a special promotional edition, making it a valuable addition to any card collection.