Mega Abomasnow ex #157 from Mega Evolution is a holo ultra_rare card that currently sells for about $2.35 ungraded, with graded copies ranging from $15.64 at grade 9 to $46.00 at grade 10. A grade 10 copy sells for around $46.00, about 20× the $2.35 raw price, so high-grade copies are worth grading.