How do you evolve Onix?
Because i can't get mine to evolve.
Joe1321 - 7 years ago
Top Voted Answer
To evolve Onix into Steelix, you need to trade it while it's holding a Metal Coat. After the trade, it'll evolve, and you'll just need to trade it back.
th3l3fty - 7 years ago
You need to get Metal coat which can be found on the ss Aqua in Kanto (Vermillion City). Let Onix hold metal coat then trade it from gameboy to gameboy and back again. You should have a Steelix. There is no other way that I know of that you get a Steelix
ridleyx1290 - 7 years ago
This question has been successfully answered and closed.
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