Genesect #BW99 from BW Black Star Promos is a reverse holo promo card that currently sells for about $4.99 ungraded, with graded copies ranging from $8.00 at grade 7 to $91.94 at grade 10. A grade 10 copy sells for around $91.94, about 18× the $4.99 raw price, so high-grade copies are worth grading.