Pikachu #SM86 from SM Black Star Promos is a reverse holo promo card that currently sells for about $26.99 ungraded, with graded copies ranging from $42.50 at grade 7 to $4,879 at grade 10. TCGrader's AI has graded 5 copies of Pikachu (SM Black Star Promos), averaging 7.9 overall. A grade 10 copy sells for around $4,879, about 181× the $26.99 raw price, so high-grade copies are worth grading.