Keldeo #XY118 from XY Black Star Promos is a reverse holo promo card that currently sells for about $15.00 ungraded, with graded copies ranging from $16.58 at grade 7 to $222 at grade 10. A grade 10 copy sells for around $222, about 15× the $15.00 raw price, so high-grade copies are worth grading.