It was only available inside random booster packs of the S5A Matchless Fighters series that was released in Japan, in March, 2021
you can spot similar patterns in both versions just that the Wizards version is resized to be thicker
Mewtwo has unmatched collector staying power (Kanto original, anime icon, Pokemon GO raid boss, 30th anniversary headliner), which is why this card has held above $80 for most of 2024 and 2025 despite broader S10B price movement
But once you start using two or more colors, you have to make sure you can get your colors
In a bomb heavy, grindy multicolored format, a card like that tends to overperform for me
This thing is pretty nasty in most landfall decks and was just printed last year