You have to trade him
Onix does not evolve by level. It can evolve by being traded while holding metal coat.
Level: Onix Evolves By Trading.
level it up
onix has to be traded and be holding metal coat
You have to trade him
Onix does not evolve by level. It can evolve by being traded while holding metal coat.
It doesn't evolve by level, but rather, by trading it while it's holding a Metal Coat.
Level: Onix Evolves By Trading.
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
level it up
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 has to be traded and be holding metal coat
level 50
Onix doesn't evolve through leveling. But, make him hold a Steel Coat, and he will evolve into a Steelix!
it cant
sorry doesn't evolve in leaf green