White Kyurem #XY128 from XY Black Star Promos is a reverse holo promo card that currently sells for about $15.42 ungraded, with graded copies ranging from $70.00 at grade 9 to $181 at grade 10. A grade 10 copy sells for around $181, about 12× the $15.42 raw price, so high-grade copies are worth grading.