Released on October 16, 2000, the Gym Challenge 1st Edition cards were available in 11-card booster packs that consisted of seven common cards, three uncommon cards, and one rare card
However, the mewtwo looks like a one I used to have which was a varient that came with some old magazine (Corocoro?) so that one is definatly worth looking into
This technical scarcity, combined with Mews status as a legendary favorite, keeps Near Mint raw copies north of $300 and graded 10 copies at $3,000
If you arent into the regular full art, then there exists a rainbow rare version that might pique your interest
Be ready to refresh Best Buy at odd hours, and dont sleep on bundle or blister preorders
That said, I like wither's flavor and intention