Octillery #SWSH089 from SWSH Black Star Promos is a reverse holo promo card that currently sells for about $5.99 ungraded, with graded copies ranging from $24.13 at grade 9 to $98.95 at grade 10. A grade 10 copy sells for around $98.95, about 17× the $5.99 raw price, so high-grade copies are worth grading.