Onix is card #105 of 236 in Cosmic Eclipse (2019), a Common illustrated by otumami. At about $0.41 it is the #245 most valuable card in the set. In a Cosmic Eclipse booster it turns up about once every 12 packs. It is one of 31 Onix cards printed so far.
1999Base Set
2002Legendary Collection
2004Team Rocket Returns
2008Stormfront
2013Plasma Freeze
2019Hidden Fates
2022Pokémon GO
2026Delta Reign

















See the full Cosmic Eclipse card list
An ungraded Onix from Cosmic Eclipse sells for about $0.41. A PSA 10 is worth more, roughly $2.05 by our estimate, and a PSA 9 around $0.94.
It is a Common, and it shows up about once every 12 Cosmic Eclipse packs.
otumami drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Cosmic Eclipse 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.