A black Onix is a shiny Pokemon, which is extremely rare.
Chat with our AI personalities
If you mean,, what onix evolves into,, it's steelix,, but the is no Pokemon that evolves into onix
yes it evoles by happiness
Onix does not evolve by leveling up, you must to trade it while it is holding the item Metal Coat and it will evolve as soon as it has been traded.
onix is the strongest
Onix doesn't evolve from anything. It evolves into Steelix, but Onix is the base pokemon for that evolution chain. :)