Riolu is card #78 of 172 in Brilliant Stars (2022), a Common illustrated by Teeziro. At about $0.20 it is the #156 most valuable card in the set. In a Brilliant Stars booster it turns up about once every 9 packs. It is one of 32 Riolu cards printed so far.
2007Diamond & Pearl
2009Platinum
2012Next Destinies
2016Fates Collide
2018Ultra Prism
2020Vivid Voltage
2022Brilliant Stars
2024Paldean Fates

















See the full Brilliant Stars card list
An ungraded Riolu from Brilliant Stars sells for about $0.20. A PSA 10 is worth more, roughly $0.70 by our estimate, and a PSA 9 around $0.40.
It is a Common, and it shows up about once every 9 Brilliant Stars packs.
Teeziro drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Brilliant Stars booster packs in your browser with the set's real pull rates and keep what you pull in a digital binder. No real cards, nothing to buy.