Alolan Sandslash is card #SM18 of 248 in SM Black Star Promos (2017), a Promo illustrated by Tokiya. At about $21.65 it is the #70 most valuable card in the set. It is one of 25 Sandslash cards printed so far.
1999Fossil
2003Skyridge
2005Delta Species
2010HeartGold & SoulSilver
2015BREAKthrough
2017Guardians Rising
2019Unbroken Bonds
2023151

















See the full SM Black Star Promos card list
An ungraded Alolan Sandslash from SM Black Star Promos sells for about $21.65. A PSA 10 is worth more, roughly $108 by our estimate, and a PSA 9 around $49.79.
It is a Promo.
Tokiya drew the art for this card.