Glaceon #SWSH192 from SWSH Black Star Promos is a reverse holo promo card that currently sells for about $3.87 ungraded, with graded copies ranging from $14.99 at grade 7 to $560 at grade 10. A grade 10 copy sells for around $560, about 145× the $3.87 raw price, so high-grade copies are worth grading.