Gengar from the SWSH Black Star Promos set is a Holofoil variant card, designated as #SWSH052. As a Promo rarity card, it holds a notable position among collectors due to its unique artwork and the popularity of Gengar in the Pokémon franchise. Currently valued at $90.26, it reflects the ongoing demand for rare promotional cards in the Pokémon trading card market. Graded examples may command higher prices depending on condition.