Psyduck #53 from Fossil is a common card that currently sells for about $2.00 ungraded, with graded copies ranging from $18.00 at grade 7 to $510 at grade 10. TCGrader's AI has graded 6 copies of Psyduck (Fossil), averaging 7.5 overall. Only 17% scored 9 or higher, so genuinely mint copies of this card are scarce. A grade 10 copy sells for around $510, about 255× the $2.00 raw price, so high-grade copies are worth grading.