Vaporeon-GX is card #SM172 of 248 in SM Black Star Promos (2017), a Promo illustrated by PLANETA Otani. At about $11.49 it is the #116 most valuable card in the set. It is one of 38 Vaporeon cards printed so far.
1999Jungle
2003Skyridge
2007Power Keepers
2010HS—Undaunted
2013Plasma Freeze
2017SM Black Star Promos
2021Evolving Skies
2025Prismatic Evolutions

















See the full SM Black Star Promos card list
An ungraded Vaporeon-GX from SM Black Star Promos sells for about $11.49. A PSA 10 is worth more, roughly $57.45 by our estimate, and a PSA 9 around $26.43.
It is a Promo.
PLANETA Otani drew the art for this card.