Mega Audino ex #253 from Ascended Heroes is a holo ultra_rare card that currently sells for about $2.28 ungraded, with graded copies ranging from $9.95 at grade 7 to $56.58 at grade 10. A grade 10 copy sells for around $56.58, about 25× the $2.28 raw price, so high-grade copies are worth grading.