Team Rocket's Nidoking ex #216 from Destined Rivals is a holo ultra_rare card that currently sells for about $4.59 ungraded, with graded copies ranging from $16.00 at grade 7 to $50.06 at grade 10. A grade 10 copy sells for around $50.06, about 11× the $4.59 raw price, so high-grade copies are worth grading.