Team Rocket's Petrel #226 from Destined Rivals is a holo ultra_rare card that currently sells for about $8.00 ungraded, with graded copies ranging from $5.50 at grade 7 to $38.00 at grade 10. A grade 10 copy sells for around $38.00, about 4.8× the $8.00 raw price, so high-grade copies are worth grading.