Sylveon #172 from Scarlet & Violet Promos is a reverse holo promo card that currently sells for about $3.64 ungraded, with graded copies ranging from $5.00 at grade 7 to $125 at grade 10. A grade 10 copy sells for around $125, about 34× the $3.64 raw price, so high-grade copies are worth grading.