Team Rocket's Mewtwo ex #231 from Destined Rivals is a illustration_rare card that currently sells for about $456 ungraded, with graded copies ranging from $332 at grade 7 to $1,035 at grade 10. TCGrader's AI has graded 55 copies of Team Rocket's Mewtwo ex (Destined Rivals), averaging 8.8 overall. 71% scored 9 or higher, so clean copies are common and centering usually decides the top grades. A grade 10 copy sells for around $1,035, about 2.3× the $456 raw price, so high-grade copies are worth grading.