Iono's Bellibolt ex #194 from Scarlet & Violet Promos is a reverse holo promo card that currently sells for about $2.15 ungraded, with graded copies ranging from $13.25 at grade 7 to $39.00 at grade 10. A grade 10 copy sells for around $39.00, about 18× the $2.15 raw price, so high-grade copies are worth grading.