Shellder #54 from Fossil is a common card that currently sells for about $1.79 ungraded, with graded copies ranging from $15.25 at grade 7 to $107 at grade 10. TCGrader's AI has graded 7 copies of Shellder (Fossil), averaging 8.1 overall. Only 14% scored 9 or higher, so genuinely mint copies of this card are scarce. A grade 10 copy sells for around $107, about 60× the $1.79 raw price, so high-grade copies are worth grading.