Entei #HGSS20 from HGSS Black Star Promos is a holo promo card that currently sells for about $24.21 ungraded, with graded copies ranging from $62.00 at grade 7 to $321 at grade 10. A grade 10 copy sells for around $321, about 13× the $24.21 raw price, so high-grade copies are worth grading.