Mewtwo-GX is card #31 of 68 in Hidden Fates (2019), a Rare Holo GX illustrated by aky CG Works. At about $7.87 it is the #6 most valuable card in the set. In a Hidden Fates booster it turns up about once every 76 packs. It is one of 89 Mewtwo cards printed so far.
1999Base Set
2003Ruby & Sapphire
2006Holon Phantoms
2009Pokémon Rumble
2015BREAKthrough
2019Unified Minds
2023Crown Zenith
202630th Celebration

















See the full Hidden Fates card list
An ungraded Mewtwo-GX from Hidden Fates sells for about $7.87. A PSA 10 is worth more, roughly $39.35 by our estimate, and a PSA 9 around $18.10.
It is a Rare Holo GX, and it shows up about once every 76 Hidden Fates packs.
aky CG Works drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Hidden Fates 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.