Battle City #BW39 from BW Black Star Promos is a holo promo card that currently sells for about $5.00 ungraded, with graded copies ranging from $33.81 at grade 9 to $90.13 at grade 10. A grade 10 copy sells for around $90.13, about 18× the $5.00 raw price, so high-grade copies are worth grading.