Blastoise-GX is card #SM189 of 248 in SM Black Star Promos (2017), a Promo illustrated by sadaji. At about $20.43 it is the #74 most valuable card in the set. It is one of 45 Blastoise cards printed so far.
1999Base Set
2002Expedition Base Set
2007Secret Wonders
2010HS鈥擴nleashed
2014XY
2017SM Black Star Promos
2022Pok茅mon GO
2024Stellar Crown

















See the full SM Black Star Promos card list
An ungraded Blastoise-GX from SM Black Star Promos sells for about $20.43. A PSA 10 is worth more, roughly $102 by our estimate, and a PSA 9 around $46.99.
It is a Promo.
sadaji drew the art for this card.