Team Aqua's Secret Base #28 from Double Crisis is a reverse holo uncommon card that currently sells for about $1.31 ungraded, with graded copies ranging from $15.54 at grade 9 to $40.43 at grade 10. A grade 10 copy sells for around $40.43, about 31× the $1.31 raw price, so high-grade copies are worth grading.