on the fifth sevii island(i am not sure about which island), there is a man near a tower of stone (the grave of his dead onix 'tectonix').There you may find a pokeball which has metal coat. You may use metal coat to evolve onix into steelix and scyther into scizor.
sail to iron islands, and go to the house.
Byron should be there and he will give it to you.
or if its too much, go inside iron islands and catch a steelix.
you can either use thief on wild magnemite, there is an 8 percent chance that it has one oryou can get it from the ss aqua captain. scyther also evolves with metal coat
It doesn't evole at a level, it evolves into Steelix when traded holding a Metal Coat.
Onix evolves into Steelix when it is holding a Metal Coat and traded to someone else.
the way you can evolve an onix is by letting it hold a metal coat and trading it to a friend and then making them trade it back onix evolves when your trade parterner receives onix.
You must Trade Onix while it is holding a Metal Coat in order to Evolve into a Steelix.
On five island surf to the right and find the memorial of a dead onix nearby is a metal coat.
you trade your onix with it holding a metal coat
onix has to be traded and be holding metal coat
Trade onix holding a metal coat
You need to trade an Onix holding a Metal Coat.
get the metel coat give it to onix and then trade it
Trade onix while it is holding metal coat
Trade Onix to someone with metal coat attached.
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.
Onix evolves into Steelix when you trade Onix while holding a metal coat.
It doesn't evole at a level, it evolves into Steelix when traded holding a Metal Coat.
if you cach an onix there is a posibility that it could be holding a metal coat
Onix > trade w/ Metal Coat > Steelix