Mewtwo is card #10 of 102 in Base (1999), a Rare Holo illustrated by Ken Sugimori. At about $86.16 it is the #4 most valuable card in the set. In a Base booster it turns up about once every 47 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

















An ungraded Mewtwo from Base sells for about $86.16. A PSA 10 is worth more, roughly $1,120 by our estimate, and a PSA 9 around $345.
It is a Rare Holo, and it shows up about once every 47 Base packs.
Ken Sugimori drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Base 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.