Corviknight VMAX #TG19 from Silver Tempest Trainer Gallery is a holo holo_rare card that currently sells for about $10.00 ungraded, with graded copies ranging from $7.00 at grade 7 to $53.55 at grade 10. A grade 10 copy sells for around $53.55, about 5.4× the $10.00 raw price, so high-grade copies are worth grading.