Mega Steelix Evolution Line is Taking Out Every Pokemon 😆 Pokemon Go.

Pokemon 95 Onix Pokedex: Evolution, Moves, Location, Stats

Onix (Pokémon GO) - Best Movesets, Counters, Evolutions and CP

Soilix Onix Pre Evolution by Hyperagua on DeviantArt

Onix Family Collage by AuroraObfuscate on DeviantArt

Elite Trainer Mark on X: Onix was Brock's first ever Pokémon. However, it didn't even evolve under his ownership, it evolved into Steelix while his brother Forrest was taking care of it.

Pokemon Steelix GOLD

Musings and Such by Moonvale — Moonvale's Pokemon Commentary: #208 Steelix

Which Pokémon needs a mega evolution? - Quora

Onix - XY: Evolutions Reverse Holo - Pokemon

Pokémon Go Mega Evolution update and new bonuses, how to Mega Evolve and all Mega Evolutions list