he doesn't evolve at a level, you have to get the metal coat and trade it. then he evolves.
Onix evolves once you trade it to another player however it needs to be holding the Metal Coat while you trade it to another player.
it evolves when you trade it
onyx evolves in a Steelix
Shellos evolves into Gastrodon at level 30, but Gastrodon does not evolve.
it dose not evolve by leveling up use a water stone
chimecho doesn't evolve
If you are talking about Unknown, the Pokemon, then no, it does not evolve. But there are many different types of Unknown
Ralts Evolves At Level 20 And Kirlia Evolves At Level 30 And A Male Kirlia Evolves Into Galade With A Dawn Stone.
Onyx doesn't evolve by level you trade it holding a steal coat!!!!! ONYX ONYX ONYX
you need steel coat i believe
he evolves with a metal coat when you trade him
well it evolve at level 30 .
it doesn't evolve by level you have to give it a metal coat to hold and then trade it
level 30
level 48.
at level 55
Level 40
Level 48
level 56
Shellos evolves into Gastrodon at level 30, but Gastrodon does not evolve.