Mewtwo-GX is card #78 of 73 in Shining Legends (2017), a Rare Secret illustrated by Mitsuhiro Arita. At about $829 it is the #1 most valuable card in the set. In a Shining Legends booster it turns up about once every 53 packs. It is one of 89 Mewtwo cards printed so far.
6 copies have been graded by players in Holobrook's grading game, and 2 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
1999Base Set
2003Ruby & Sapphire
2006Holon Phantoms
2009Pokémon Rumble
2015BREAKthrough
2017Shining Legends
2019Unified Minds
2023Crown Zenith

















See the full Shining Legends card list
An ungraded Mewtwo-GX from Shining Legends sells for about $829. A PSA 10 is worth more, roughly $4,143 by our estimate, and a PSA 9 around $1,906.
It is a Rare Secret, and it shows up about once every 53 Shining Legends packs.
Mitsuhiro Arita drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Shining Legends booster packs in your browser with the set's real pull rates and keep what you pull in a digital binder. No real cards, nothing to buy.