Black Kyurem-EX #100 from Legendary Treasures is a holo holo_rare card that currently sells for about $5.74 ungraded, with graded copies ranging from $11.37 at grade 7 to $175 at grade 10. A grade 10 copy sells for around $175, about 31× the $5.74 raw price, so high-grade copies are worth grading.