Glimmora ex #213 from Obsidian Flames is a ultra_rare card that currently sells for about $1.74 ungraded, with graded copies ranging from $11.02 at grade 9 to $29.99 at grade 10. A grade 10 copy sells for around $29.99, about 17× the $1.74 raw price, so high-grade copies are worth grading.