Sylveon-EX #RC21 from Generations is a reverse holo holo_rare card that currently sells for about $40.11 ungraded, with graded copies ranging from $47.43 at grade 7 to $1,999 at grade 10. A grade 10 copy sells for around $1,999, about 50× the $40.11 raw price, so high-grade copies are worth grading.