Garchomp & Giratina-GX #SM193 from SM Black Star Promos is a reverse holo promo card that currently sells for about $77.75 ungraded, with graded copies ranging from $30.35 at grade 7 to $295 at grade 10. TCGrader's AI has graded 6 copies of Garchomp & Giratina-GX (SM Black Star Promos), averaging 7.5 overall. Only 17% scored 9 or higher, so genuinely mint copies of this card are scarce. A grade 10 copy sells for around $295, about 3.8× the $77.75 raw price, so high-grade copies are worth grading.