Riolu is card #16 of 17 in POP Series 8 (2008), a Common illustrated by Masakazu Fukuda. At about $16.58 it is the #8 most valuable card in the set. It is one of 32 Riolu cards printed so far.
2007Diamond & Pearl
2008Legends Awakened
2009Platinum
2012Next Destinies
2016Fates Collide
2018Ultra Prism
2020Vivid Voltage
2024Paldean Fates















See the full POP Series 8 card list
An ungraded Riolu from POP Series 8 sells for about $16.58. A PSA 10 is worth more, roughly $133 by our estimate, and a PSA 9 around $46.42.
It is a Common.
Masakazu Fukuda drew the art for this card.