Pokemon 2017 SM#4+ GX Battle Boost Xurkitree GX Secret Rare holofoil card. It was only available inside random booster packs of the SM#4+ GX Battle Boost series that was released in Japan, in October, 2017. This is one of the secret rare inserts in the series. The odds of getting it were very very low.
Card #: 116/114
Type: Secret Rare/Holofoil
Condition: Mint condition. Never been played with. No noticeable creases, dents, scratches or whitening on edges of card.