Umbreon & Darkrai-GX is card #SM241 of 248 in SM Black Star Promos (2017), a Promo illustrated by so-taro. At about $233 it is the #6 most valuable card in the set. It is one of 46 Umbreon cards printed so far.
3 copies have been graded by players in Holobrook's grading game, and 1 came back a Gem Mint 10.
POP 1 is still open for PSA, BGS and CGC: the first player to grade this card a 10 with each company gets a one-of-a-kind POP 1 slab. See the Mint
2001Neo Discovery
2005Delta Species
2010HS鈥擴ndaunted
2012Dark Explorers
2017Sun & Moon
2019Unified Minds
2023Obsidian Flames
202630th Celebration

















See the full SM Black Star Promos card list
An ungraded Umbreon & Darkrai-GX from SM Black Star Promos sells for about $233. A PSA 10 is worth more, roughly $1,164 by our estimate, and a PSA 9 around $535.
It is a Promo.
so-taro drew the art for this card.