M Mewtwo-EX #64 from BREAKthrough is a holo holo_rare card that currently sells for about $29.03 ungraded, with graded copies ranging from $49.00 at grade 7 to $1,751 at grade 10. TCGrader's AI has graded 5 copies of M Mewtwo-EX (BREAKthrough), averaging 7.4 overall. Only 20% scored 9 or higher, so genuinely mint copies of this card are scarce. A grade 10 copy sells for around $1,751, about 60× the $29.03 raw price, so high-grade copies are worth grading.