Snorlax #51 from Scarlet & Violet Black Star Promos is a reverse holo promo card that currently sells for about $24.88 ungraded, with graded copies ranging from $23.00 at grade 7 to $403 at grade 10. TCGrader's AI has graded 5 copies of Snorlax (Scarlet & Violet Black Star Promos), averaging 8.7 overall. 40% scored 9 or higher, so a strong copy is achievable but far from guaranteed. A grade 10 copy sells for around $403, about 16× the $24.88 raw price, so high-grade copies are worth grading.