Onix is card #103 of 236 in Unified Minds (2019), a Common illustrated by Hitoshi Ariga. At about $0.41 it is the #222 most valuable card in the set. In an Unified Minds 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 Unified Minds card list
An ungraded Onix from Unified Minds 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 Unified Minds packs.
Hitoshi Ariga drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Unified Minds 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.