Mewtwo is card #56 of 165 in Expedition Base Set (2002), a Rare illustrated by Kimiya Masago. At about $222 it is the #19 most valuable card in the set. In an Expedition Base Set booster it turns up about once every 56 packs. It is one of 89 Mewtwo cards printed so far.
1999Base Set
2002Expedition Base Set
2003Ruby & Sapphire
2006Holon Phantoms
2009Pokémon Rumble
2015BREAKthrough
2019Unified Minds
2023Crown Zenith

















See the full Expedition Base Set card list
An ungraded Mewtwo from Expedition Base Set sells for about $222. A PSA 10 is worth more, roughly $2,892 by our estimate, and a PSA 9 around $890.
It is a Rare, and it shows up about once every 56 Expedition Base Set packs.
Kimiya Masago drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Expedition Base Set 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.