You trade the Onix while it's holding a metal coat, and it will evolve into a Steelix. But if you are in Sinnoh go inside the main mountain and level it up to 20 or any level above. It will evolve. this also applies to nosepass.
Onix doesn't evolve via level. It can only evolve through being traded while holding a Metal Coat in gen 2 and higher.
Onix can only evolve through trading it with metal coat on at any level.
cant answer look an serebi.net and PS its heart gold
No, not in the series. To make an Onix evolve you trade it while it's holding metal coat.
Steelix is a Steel and Ground type pokemon.
It doesn't evole at a level, it evolves into Steelix when traded holding a Metal Coat.
Onix does not evolve by level. It can evolve by being traded while holding metal coat.
Onix can only evolve through trading it with metal coat on at any level.
Onix does not evolve by level, it evolves into Steelix by trade whilst holding a metal coat.
a stone onix will evolve into a stone steelixs?
there is no level for onix to evolve it will evolve if u trade it to another game make sure it holds a metal coat or it will not evolve
In Pokemon, Onix does not evolve at a specific level. The only way that Onix can evolve into Steelix is by trading it to someone while it is holding a metal coat.
onix evovles into steelix
Level: Onix Evolves By Trading.
Onix can be evolved by placing metal coat on it and trading it with a friend. It will evolve into a Steelix.
steelex does not evolve for it is a final evolve form of onix
it doesn't -_-
onix doesn't evolve by level you have to trade it with a metal coat on it