Selling for my son. Happy to answer questions. I don't think it's been played but I'm not 100%. Has been kept in plastic cover.

This is an AI suggested description:
The Pokemon TCG Mega Gengar EX XY 166 Black Star Promo Shiny Holo Card is a highly sought-after collectable for fans of the Pokemon Trading Card Game. This card features Gengar, a Psychic type Pokemon, in a stunning shiny holo finish. Autographed by Ryo Ueda, the original illustrator, this card from the XY set is a must-have for collectors looking to add a rare and valuable piece to their collection. Manufactured by The Pokemon Company in 2016, this card is authenticated by Professional Sports Authenticator (PSA) and is sure to be a standout piece in any collection.