Onix (Pokémon)

Onix イワーク Iwark

Artwork from FR/LG

Types Species  Rock  Ground  Rock Snake Pokémon Abilities Exp. at 100 Rock Head or Sturdy 1,000,000 Pokédex Kanto #095 Johto #062 Hoenn #265* Sinnoh #034 Browser Fiore R— Almia R— Height Weight 28'10" 463.0 lbs. Pokédex color Body style Footprint Catch rate Gray 45 Gender ratio   50% male   50% female Egg groups Egg cycles Mineral 26 (6630 steps*) EV yield HP 0 Atk 0 Def 1 Sp.Atk 0 Sp.Def 0 Speed 0 Exp. 108 External links On Legendary Pokémon Pokédex: Generation III Generation IV On Pokémon Palace Network Pokédex (Gen. I-III) On Smogon Pokédex: Generation I Generation II Generation III Generation IV On Eevee's Pokédex (Gen. I-IV) On Psypoke Pokédex On Pokecharms Pokédex (Gen. III-IV) On Marriland Pokédex (Gen. IV) On Serebii's Pokédex: Generation I/II Generation III (Spin-Off games) Generation IV (Spin-Off games) On Azure Heights Pokédex (Gen. I) On Pokémon Dungeon Pokédex (Gen. I-II) On Ultimate Pokémon Center Pokédex (Gen. I-IV) Artwork on Bulbagarden Archives

Onix (Japanese: イワーク Iwark) is a dual-type Rock/Ground Pokémon.

It evolves into Steelix when traded holding a Metal Coat.

Biology

Physiology

Onix basically resembles a giant chain of gray boulders. The Pokémon has a magnet in its brain that serves as an internal compass. Onix's body becomes more rounded and smoother as it grows with age. A fully grown Onix measures at an enormous 28 feet 10 inches, or 8.8 metres.

Gender differences

None.

Special abilities

It tunnels under the ground at over fifty miles per hour. Its hard head and sturdy body are the only thing that protects Onix from the tremors it causes. If Onix takes a hard enough blow and it's body falls apart, it can regrow the rest in a matter of a few weeks. It shares this trait with Arbok.

Behavior

They are very hot headed Pokémon and will constantly attack humans and Pokémon when various objects are caught in its cragged body in the wild, but under the care of trainers they will show signs of distress instead of attacking others.

Habitat

Cave Pokémon

Onix can be found in mountains and caves, though they prefer underground tunnels with little light. It can also be found scragged mountains and abandoned mines.

Diet

Main article: Pokémon food

In the anime

Onix in the anime

Onix first appeared in Showdown in Pewter City under the ownership of Brock. He used it in his journeys in Kanto and Johto before giving it to his little brother, Forrest, in A Family That Battles Together, Stays Together. At some time before Grating Spaces, it evolved into a Steelix.

Ash and co. encountered a giant Onix in To Master the Onixpected. It was on a rampage until Bruno managed to get a Sandslash from under the Rock Snake Pokémon's "skin." Bruno captured the Onix afterward.

The Crystal Onix featured a Crystal Onix. Ash and co. helped a glass sculptor named Mateo search for it because Mateo believed it would help inspire him to be better at his craft.

In Hello Pummelo, Drake of the Orange Crew owns an Onix and he used it to fight Ash's Squirtle in the second round in the Orange League Champion match. During the battle with Squirtle, Drake's Onix dug underground and emerged to use Bind on Squirtle, but Squirtle used Withdraw followed by a Hydro Pump, soaking Drake's Onix into submission. After drenching Drake's Onix, Squirtle defeated the Onix with a Skull Bash.

Janina, Jasmine's apprentice, has an Onix in the episode Fight for the Light. Her Onix was heavily coated in wax for protection against Water attacks.

A "King Onix" was featured in Hooked on Onix. Team Rocket tricked King Onix into thinking Ash and co. were going to destroy his kingdom. When Ash managed to convince King Onix that he and his friends weren't bad by defeating it in a battle, Team Rocket tried to steal the royal Rock Snake Pokémon, but their plan was foiled, as usual.

Roark's Onix was first seen in Shapes of Things to Come where it was used against Paul's Elekid and Chimchar. In A Gruff Act to Follow, it defeated Ash's Pikachu but Pikachu managed to defeat it in a rematch in O'er the Rampardos we Watched.

A rampaging Onix appeared in A Maze-ing Race!.

Brock used an Onix in One Team, Two Team, Red Team, Blue Team! as part of the Pokémon Triathlon.

An Onix appeared in Steeling Peace of Mind!.

Pokédex entries

In the manga

Brock has an Onix in Pokémon Zensho, the Electric Tale of Pikachu, and Pocket Monsters.

In the Pokémon Special manga

Onix debuts in Onix is On! of the Red, Green & Blue chapter as Brock's main Pokémon, however a picture of it is showed on a leaflet in Wanted: Pikachu!. Onix later continues to make appearances with Brock in various volumes onwards.

Bruno owns an Onix, on which he battles Bill, Lt. Surge and Red on Cerise Island. The Onix later manages to carry Bruno and Koga off the collapsing island. Another wild Onix was also seen on Cerise Island.

In the TCG

Main article: Onix (TCG)

Other appearances

Super Smash Bros.

Onix is obtainable in a Poké Ball. Once thrown, it flies up into the sky and uses Rock Throw on the player's opponents. This will hit everyone on the field except Kirby if he uses his down special move.

Super Smash Bros. Melee

Onix is the second Poké Float to appear. It provides a horizontally flat area all the time it is on-screen, though it becomes diagonal as it leaves the screen.

Game data

Pokédex entries

Game locations

In side games

Held items

Base stats

Type effectiveness

Learnset

Onix is capable of learning the following moves in Generation IV.

• Moves in bold are damaging moves to which STAB applies.

Moves in Italics aren't STAB for Onix, but are for some/all evolutions.

By leveling up

By TM/HM

By breeding

By tutoring

Side game data

Pokémon Pinball
	Acquisition: Catch
Pokémon Trozei!
	Rarity: Common
Pokémon Mystery Dungeon Red Rescue Team and Blue Rescue Team
Body size: 4	Recruit Rate: 9.6%	Friend Area: Boulder Cave
Phrases
51%-100% HP	I tell you, I'm better under the ground!
26%-50% HP	My health is down to half. Better take it easy.
1%-25% HP	It's looking bad... My body's cracking up...
Level Up	Heheheh... Leveled up.
Pokémon Mystery Dungeon Explorers of Time and Explorers of Darkness
Body size: 4	Recruit Rate: 1%	IQ Group: E

Evolution

	Unevolved	→ Trade holding Metal Coat	First evolution
	Onix  Rock  Ground		Steelix  Steel  Ground

Sprites

Gen	Game
I	Red	Blue	Yellow	Red (Ja)	Green	Back
II	Gold	Silver	Crystal			Back
III	Ruby	Sapphire	Emerald	FireRed	LeafGreen	Back
			File:Spr 3e 095 s.gif
IV	Diamond	Pearl	Platinum	HeartGold	SoulSilver	Back
				NO SPRITES AVAILABLE
			File:Spr 4p 095 s.png

For other sprites and images, please see Onix images on Bulbagarden Archives.

Trivia

• In Generation I, Onix was the longest Pokémon, but in Generation II, it was dropped to second place by its evolution Steelix. When Wailord was introduced in Generation III, it became the third longest.
• Onix is the largest Pokémon that evolves once.
• Onix and Swablu are the only dual-typed Pokémon that have their primary type change during evolution.
• By being under the ownership of Bruno in Generation II, Onix is one of the few unevolved Pokémon that can evolve in the same generation as that of the Elite Four member to whom it belongs, the others being Dragonair, Shelgon, Haunter and Sealeo. However, it's the only one where the Elite Four member doesn't own its evolved form.
• Onix, along with its evolved form, are the only non-Dragon-type Pokémon to learn DragonBreath by leveling up.
• Onix's Sugimori artwork is similar to its Japanese Red and Green sprite. Some TCG cards are also very similar to the artwork.
• Of all the Pokémon that can evolve, Onix has the highest base Defense.

Origin

Onix is most likely based on a snake.

Name origin

Onix's name is a corruption of onyx, a mineral. Its Japanese name may be a combination of 岩 iwa, rock, and スネ−ク snake.

It has been suggested that Onix is based on a wyrm, a type of dragon that has been presented as limbless and burrowing. However, Onix was unable to learn DragonBreath until Generation III.

In other languages

• German: Onix
• French: Onix
• Korean: 롱스톤 Rongseuton
• Chinese (Taiwan): 大岩蛇 Da Yén Sé - "Big rock snake".

Related articles

• Brock's Onix
• Bruno's Onix
• Crystal Onix

External links

Notes

This Pokémon article is part of Project Pokédex, a Bulbapedia project that aims to write comprehensive articles on each Pokémon as a species.