PSA Margins and how GameStop determines what price to sell and buy cards : r GME GameStop will extend its trade in program to graded Pokmon TCG cards Dicebreaker Mewtwo EX texture shift error card? : r PokemonMisprints Full art Mewtwo ex secret rare graded 10 GameStop has officially graded over 1 million cards with PSA! The milestone carda PSA 10 Umbreonwas submitted by Jordon Fong of Turlock, CA, who will receive a year of free grading. We GameStop PSA Grade Came Back! : r PokemonTCG