M Garchomp-EX #XY168 from XY Black Star Promos is a reverse holo promo card that currently sells for about $225 ungraded, with graded copies ranging from $170 at grade 7 to $479 at grade 10. A grade 10 copy sells for around $479, about 2.1× the $225 raw price, so high-grade copies are worth grading.