There is 2 ways you can do that: One go to BAG and locate the Metal Coat item then press A on it then press A on GIVE then press A on Onix, Two go to POKEMON then press A on Onix then press A on GIVE then press A on the Metal Coat item.
Chat with our AI personalities
Trade Onix to someone with metal coat attached.
you trade your onix with it holding a metal coat
onix has to be traded and be holding metal coat
Trade onix while it is holding metal coat
well onix can evolve if you have a metal coat is onix has the metal coat on it if you trade it with a friend and you friend gives it back you will have a steelix.