Steelix

Steelix is a / Pokémon and is the evolved form of Onix, Steelix can be obtained by making an Onix hold the Metal Coat and trading it.

Known Trainers with Steelix

 * Brock
 * Jasmine
 * Byron
 * Atilla

Trivia

 * Steelix is the second largest Pokémon besides Wailord.
 * Steelix is the heaviest Generation II Pokémon.
 * Steelix has the highest base defense out of all Steel types and Ground types.
 * Steelix is the only non-Rock type Pokemon that can learn Rock Polish while leveling up.