Mewtwo is card #52 of 215 in Scarlet & Violet Black Star Promos (2023), a Promo illustrated by Bun Toujo. At about $40.39 it is the #8 most valuable card in the set. It is one of 89 Mewtwo cards printed so far.
7 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
1999Base Set
2003Ruby & Sapphire
2006Holon Phantoms
2009Pokémon Rumble
2015BREAKthrough
2019Unified Minds
2023Crown Zenith
202630th Celebration

















See the full Scarlet & Violet Black Star Promos card list
An ungraded Mewtwo from Scarlet & Violet Black Star Promos sells for about $40.39. A PSA 10 is worth more, roughly $141 by our estimate, and a PSA 9 around $80.78.
It is a Promo.
Bun Toujo drew the art for this card.