Alolan Marowak-GX is card #SM187 of 248 in SM Black Star Promos (2017), a Promo illustrated by 5ban Graphics. At about $23.41 it is the #63 most valuable card in the set. It is one of 22 Marowak cards printed so far.
1999Jungle
2003Aquapolis
2008Legends Awakened
2012Dragons Exalted
2016Fates Collide
2017Crimson Invasion
2018Forbidden Light
2023151

















See the full SM Black Star Promos card list
An ungraded Alolan Marowak-GX from SM Black Star Promos sells for about $23.41. A PSA 10 is worth more, roughly $117 by our estimate, and a PSA 9 around $53.84.
It is a Promo.
5ban Graphics drew the art for this card.