Mega Eelektross ex #266 from Ascended Heroes is a holo ultra_rare card that currently sells for about $5.46 ungraded, with graded copies ranging from $23.25 at grade 9 to $89.99 at grade 10. A grade 10 copy sells for around $89.99, about 17× the $5.46 raw price, so high-grade copies are worth grading.