Pikachu V-UNION #SWSH140 from SWSH Black Star Promos is a reverse holo promo card that currently sells for about $3.71 ungraded, with graded copies ranging from $26.34 at grade 7 to $63.00 at grade 10. A grade 10 copy sells for around $63.00, about 17× the $3.71 raw price, so high-grade copies are worth grading.