Mega Diancie ex #41 from Phantasmal Flames is a reverse holo rare card that currently sells for about $1.58 ungraded, with graded copies ranging from $13.71 at grade 9 to $34.00 at grade 10. A grade 10 copy sells for around $34.00, about 22× the $1.58 raw price, so high-grade copies are worth grading.