Mewtwo δ #12 from Delta Species is a holo holo_rare card that currently sells for about $181 ungraded, with graded copies ranging from $206 at grade 7 to $9,000 at grade 10. TCGrader's AI has graded 5 copies of Mewtwo δ (Delta Species), averaging 7.1 overall. Only 20% scored 9 or higher, so genuinely mint copies of this card are scarce. A grade 10 copy sells for around $9,000, about 50× the $181 raw price, so high-grade copies are worth grading.