Onrak #95.167 - FusionDex

Who decided that Onix should have a ridicuously difficult catch rate?

Unexpected Shiny Onix during the grind for the Pokémon League. : r/PokemonHGSS

Pokémon Adventures: Diamond and Pearl/Platinum, Vol. 8, Book by Hidenori Kusaka, Satoshi Yamamoto, Official Publisher Page

Pokémon Adventures: Diamond and Pearl/Platinum, Vol. 3, Book by Hidenori Kusaka, Satoshi Yamamoto, Official Publisher Page

I CAUGHT A SHINY ONIX

Pokémon Card Database - Classic Venusaur - #10 Onix

Crystal Onix Anyone? Shiny Onix Pokemon Reborn

Read Pokemon Platinum Nuzlocke :: Page 19

Pokémon Adventures: Diamond and Pearl/Platinum, Vol. 10, Book by Hidenori Kusaka, Satoshi Yamamoto, Official Publisher Page

onix, geodude, roark, and cranidos (pokemon and 1 more) drawn by star_light