Mega Eelektross ex #266 from Ascended Heroes is a holo ultra_rare card that currently sells for about $4.69 ungraded, with graded copies ranging from $16.50 at grade 9 to $59.99 at grade 10. A grade 10 copy sells for around $59.99, about 13× the $4.69 raw price, so high-grade copies are worth grading.