Pokemon facts #95 - Onix

 We all know Onix, because Brock had one during the Kanto saga. Let's see some facts about it.

• Onix is the only unevolved Pokémon that is used in the Pokémon World Tournament by Trainers beyond the right attendant.

• Of all the Pokémon that can evolve, Onix has the highest base Defense. 
  • When holding an Eviolite,  Onix can reach a maximum Defense stat of 690. This is the highest  Defense stat obtainable without the assistance of stat modifiers,  Abilities or items with adverse effects.

• The Onix line is the only one which can be completely acquired with in-game trades. However, this is only possible in Pokémon HeartGold and SoulSilver, in which the player can trade Bellsprout for Onix in Violet City, and any Pokémon for Steelix in Olivine City.

• The Lagging Tail held item resembles the end of Onix's tail.

• Onix is the tallest Rock-type Pokémon and tallest unevolved Pokémon that can evolve.

Thanks, Bulbapedia!