Pokemon 2017 SM#4 The Transdimensional Beast Gyarados GX holofoil card. It was only available inside random booster packs of the SM#4 The Transdimensional Beast series that was released in Japan, in September, 2017.
Card #: 008/050
Condition: Mint condition. Never been played with. No noticeable creases, dents, scratches or whitening on edges of card.