Thalia, Heretic Cathar #46 from Eldritch Moon is a rare card that currently sells for about $4.27 ungraded, with graded copies ranging from $19.99 at grade 9 to $47.00 at grade 10. A grade 10 copy sells for around $47.00, about 11× the $4.27 raw price, so high-grade copies are worth grading.