Dark Jolteon #38 from Team Rocket is a 1st edition uncommon card that currently sells for about $18.00 ungraded, with graded copies ranging from $32.14 at grade 7 to $840 at grade 10. TCGrader's AI has graded 3 copies of Dark Jolteon (Team Rocket), averaging 8.7 overall. 33% scored 9 or higher, so a strong copy is achievable but far from guaranteed. A grade 10 copy sells for around $840, about 47× the $18.00 raw price, so high-grade copies are worth grading.