Zekrom #BW005 from BW Black Star Promos is a holo promo card that currently sells for about $3.62 ungraded, with graded copies ranging from $21.50 at grade 7 to $74.88 at grade 10. A grade 10 copy sells for around $74.88, about 21× the $3.62 raw price, so high-grade copies are worth grading.