Mega Eelektross ex #266 from Ascended Heroes is a holo ultra_rare card that currently sells for about $5.03 ungraded, with graded copies ranging from $17.53 at grade 9 to $38.00 at grade 10. A grade 10 copy sells for around $38.00, about 7.6× the $5.03 raw price, so high-grade copies are worth grading.