Arven #186 from Obsidian Flames is a reverse holo uncommon card that currently sells for about $1.94 ungraded, with graded copies ranging from $3.25 at grade 7 to $49.00 at grade 10. A grade 10 copy sells for around $49.00, about 25× the $1.94 raw price, so high-grade copies are worth grading.