Pikachu & Zekrom-GX #SM168 from SM Black Star Promos is a reverse holo promo card that currently sells for about $177 ungraded, with graded copies ranging from $200 at grade 7 to $2,050 at grade 10. TCGrader's AI has graded 19 copies of Pikachu & Zekrom-GX (SM Black Star Promos), averaging 7.9 overall. Only 21% scored 9 or higher, so genuinely mint copies of this card are scarce. A grade 10 copy sells for around $2,050, about 12× the $177 raw price, so high-grade copies are worth grading.