Mega Abomasnow ex #157 from Mega Evolution is a holo ultra_rare card that currently sells for about $2.69 ungraded, with graded copies ranging from $18.92 at grade 9 to $26.00 at grade 10. A grade 10 copy sells for around $26.00, about 9.7× the $2.69 raw price, so high-grade copies are worth grading.