Pikachu-GX is card #SM232 of 248 in SM Black Star Promos (2017), a Promo illustrated by aky CG Works. At about $26.42 it is the #57 most valuable card in the set. It is one of 213 Pikachu cards printed so far.
1999Base Set
2004FireRed & LeafGreen
2007Power Keepers
2011Black & White
2015Roaring Skies
2017Crimson Invasion
2019Cosmic Eclipse
2022Brilliant Stars

















See the full SM Black Star Promos card list
An ungraded Pikachu-GX from SM Black Star Promos sells for about $26.42. A PSA 10 is worth more, roughly $132 by our estimate, and a PSA 9 around $60.77.
It is a Promo.
aky CG Works drew the art for this card.