How to evolve Onix into Steelix in Pokémon Legends: Arceus.
Evolving Onix
If you first want to find and catch Onix, head to one of these areas to locate it:
- Celestica Trail (Coronet Highlands)
- Scarlet Bog, Bolderoll Slope, Lake Valor (Crimson Mirelands)
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Onix Shiny Onix
Type:
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Getting Steelix
Once you have caught it, you will need a Metal Coat to evolve it. When exposed to this item, Onix can evolve. You can find a Metal Coat:
- By trading 1,000 Merit Points at the Trading Post
- In space-time distortions
- From the Ginkgo Guild merchant
- By defeating Magnemite / Magneton / Magnezone
Once you have the item, use it and you will get Steelix!
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Steelix Shiny Steelix
Type:
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Credits to Poképédia for the sprites.
Screenshots by Pokémon France.




