M Metagross-EX #XY35 from XY Black Star Promos is a reverse holo promo card that currently sells for about $104 ungraded, with graded copies ranging from $104 at grade 7 to $780 at grade 10. A grade 10 copy sells for around $780, about 7.5× the $104 raw price, so high-grade copies are worth grading.