Greninja ex is card #132 of 215 in Scarlet & Violet Black Star Promos (2023), a Promo illustrated by Sie Nanahara. At about $82.06 it is the #3 most valuable card in the set. It is one of 36 Greninja cards printed so far.
2 copies have been graded by players in Holobrook's grading game. None has come back a 10 yet.
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
2013XY Black Star Promos
2014XY
2017SM Black Star Promos
2018Forbidden Light
2021Fusion Strike
2022Astral Radiance
2023Scarlet & Violet Black Star Promos
2024Twilight Masquerade

















See the full Scarlet & Violet Black Star Promos card list
An ungraded Greninja ex from Scarlet & Violet Black Star Promos sells for about $82.06. A PSA 10 is worth more, roughly $287 by our estimate, and a PSA 9 around $164.
It is a Promo.
Sie Nanahara drew the art for this card.