Mega Meganium ex #010 from Ascended Heroes is a holo rare card that currently sells for about $1.87 ungraded, with graded copies ranging from $9.49 at grade 9 to $29.00 at grade 10. A grade 10 copy sells for around $29.00, about 16× the $1.87 raw price, so high-grade copies are worth grading.