Bulbasaur #SWSH231 from SWSH Black Star Promos is a reverse holo promo card that currently sells for about $7.03 ungraded, with graded copies ranging from $13.00 at grade 7 to $92.00 at grade 10. A grade 10 copy sells for around $92.00, about 13× the $7.03 raw price, so high-grade copies are worth grading.