Ive experienced this firsthand with my Aurelia deck
It is the English counterpart of the Japanese set, Stellar Miracle
It is highly sought after not only because of its rarity but also because of its connection to the early days of the Pokmon TCG tournament scene
However, Clefairy is, if anything, an example of how any shadowless Base Set card can sell for surprising amounts, regardless of what's printed on it
GameStop apparently doesnt want just any cards, though: employees across multiple states say theyll only be buying cards that have already been graded by Professional Sports Authenticator (PSA) at an 8, 9, or 10, meaning theyre in near-mint condition or better with only slight imperfections
Valued at only one dollar before the latest set came out, according to MTG Goldfish, it has since seen a steady increase to $10.10, a 910% rise