Riolu #215 from Scarlet & Violet is a illustration_rare card that currently sells for about $28.00 ungraded, with graded copies ranging from $19.00 at grade 7 to $550 at grade 10. TCGrader's AI has graded 7 copies of Riolu (Scarlet & Violet), averaging 8.7 overall. 57% scored 9 or higher, so a strong copy is achievable but far from guaranteed. A grade 10 copy sells for around $550, about 20× the $28.00 raw price, so high-grade copies are worth grading.