Type Rock  Ground Species Rock Snake Pokémon Abilities Rock Head Sturdy Pokédex Gengar ← 095 → Drowzee Kanto 095 Johto N/A Hoenn N/A Sinnoh N/A Unova N/A Central Kalos 053 Evolves From None Evolves Into Steelix

Onix イワーク Iwaaku Generation I Evolutionary Line

Gender 50% ♂ / 50 % ♀ Weight Height 463.0 lbs. 210.5 kg 28'10" 8.5 m Pokédex Color Egg Group Gray Mineral Body Style Footprint Cry

Onix (Japanese: イワーク Iwaaku) is a Rock/Ground-type Pokémon introduced in Generation I that evolves into Steelix when traded while holding a Metal Coat.

Biology

Physiology

Onix is a Rock Snake Pokémon. Its serpentine body is made up of large boulders and little pebbles. It has a long horn atop its head and small eyes.

Special abilities

Onix can have the abilities Rock Head or Sturdy. Rock Head prevents Onix from recoiling, while Sturdy gives Onix immunity to OHKO moves . When it is burrowing underground, it can cause rumbles and earthquakes. It can dig at speeds up to 50 MPH. It has a compass in its brain that can tell Onix what direction it is facing.

Evolution

Onix evolves into Steelix when traded while holding a Metal Coat.

Game info

Game locations

Side game locations

Pokédex entries

Appearances

In the anime

Main articles: Brock's Onix and Crystal Onix

Brock received an Onix from his father, Flint, on his 10^th birthday, as seen in a flashback in Having a Wailord of a Time . Onix was Brock's 1^st Pokémon and has consistently been his most powerful Pokemon as well.

The Crystal Onix's first and only appearance is in the anime episode The Crystal Onix. Ash and his friends first heard of it through a note they found in a bottle floating in the ocean. The note was written by a little girl named Marissa. She wanted to find the Crystal Onix to help her brother, Mateo, gain inspiration to make glass Pokémon statues. Mateo told a story of how his grandfather discovered the Crystal Onix and then was able to make extraordinary sculptures afterwards. One of those sculptures included the Crystal Onix itself.

Trivia

• Unshō Ishizuka, the actor best known for playing Professor Oak in the original Japanese version of the anime voices both Onix and its evolved form, Steelix in both the Japanese and English-language versions of the anime.
• Before the second generation of Pokémon came about, Onix was the largest Pokémon of them all.

Etymology

Its name comes from "Onyx," a black stone that is commonly used in jewelery.

References

• Pokémon.com Pokédex
• Serebii.net Pokédex data
• Legendary Pokémon data
• The Pokémon Database
• Pokémon.Marriland data
• Pokémon Dream Pokédex data
• Psypokes Psydex data

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