The Pokémon TCG Shiny Mega Gengar EX Black Star Promo Card XY166 is a highly sought-after collectable featuring the Psychic-type creature Gengar. Manufactured in 2016 by Nintendo and illustrated by 5ban Graphics, this English-language card has a holographic finish and is part of the XY set. With its MEGA speciality and Black Star Promo rarity, this card is a must-have for Pokémon TCG enthusiasts. Autographed by designer Ryo Ueda and authenticated by Professional Sports Authenticator (PSA), this card is a valuable addition to any collection.