Onix is a dual-type Rock/Ground Pokémon with the abilities Rock Head or Sturdy, and the hidden ability Weak Armor.
Onix evolves into Steelix when traded holding a Metal Coat, which can be purchased from the Battle Arena for 150 BP.
Onix is rare in Cragonos Mines.
Onix does NOT evolve by levelling
Fixed by VocalicCrayfish
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