Pikachu #20 from Roaring Skies is a common card that currently sells for about $2.17 ungraded, with graded copies ranging from $19.62 at grade 7 to $650 at grade 10. TCGrader's AI has graded 5 copies of Pikachu (Roaring Skies), averaging 8.4 overall. Only 20% scored 9 or higher, so genuinely mint copies of this card are scarce. A grade 10 copy sells for around $650, about 300× the $2.17 raw price, so high-grade copies are worth grading.