Onix (Pokémon)

← #094: Gengar

Pokémon

#096: Drowzee →

Onix イワーク Iwark #095
Artwork from FR/LG
Type Rock Ground Unknown Unknown Blue-Striped Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown	Category Rock Snake Pokémon
Abilities Rock Head or Sturdy Sturdy Blue-Striped -----	Exp. at Lv. 100 1,000,000
Regional Pokédex numbers Kanto #095 Johto #062 Hoenn #265 Sinnoh #034 Unova Not in any regional Pokédex
Regional Browser numbers Fiore R— Almia R— Oblivia
Height 28'10" Imperial 8.8 m Metric 28'10"/8.8 m Red-Striped 0'0"/0.0 m Blue-Striped 0'0"/0.0 m
Weight 463.0 lbs. Imperial 210.0 kg Metric 463.0 lbs./210.0 kg Red-Striped 0.0 lbs./0.0 kg Blue-Striped 0.0 lbs./0.0 kg
Dex color Gray	Catch rate 45 (5.9%)
Body style Blue-Striped	Footprint      Blue-Striped
Gender ratio Gender unknown Unknown 50% male, 50% female
Breeding Mineral group 26 cycles (6630 minimum steps)
EV yield HP 0 Atk 0 Def 1 Sp.Atk 0 Sp.Def 0 Speed 0 Base Exp.: 108 Battle Exp.: 1081*
External links On Smogon Pokédex: Generation I Generation II Generation III Generation IV Generation V Generation VI Generation VII Generation VIII Generation IX 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

File:Cave.gif

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

File:EP005 013.jpg

Onix in the anime

Major Appearances

Brock's Onix

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.

Other

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.

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!.

Minor Appearances

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.

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!, and again in DP134.

Pokédex entries

Episode Pokémon Source Entry DP015 Onix Dawn's Pokédex Onix, the Rock Snake Pokémon. It tunnels through the ground which shakes when it raises its thunderous roar. It can move the ground at fifty miles per hour.

In the manga

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

In Pokémon Special

Onix debuts in Onix is On! of the Red, Green & Blue arc 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.

Pokédex entries

Manga Chapter Entry Pokémon Special PS067 Digs through the earth at up to 50 miles/hour in search of food. The tunnels left behind become a favorite habitat of Diglett.

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

This Pokémon was unavailable prior to Generation I.
Generation I Red As it grows, the stone portions of its body harden to become similar to a diamond, but colored black. Blue Yellow Burrows at high speed in search of food. The tunnels it leaves are used as homes by Diglett. Stadium Its large body is over 26 feet long. Despite its size, it can squirm its way through the ground at 50 mph.
Generation II Gold It twists and squirms through the ground. The thunderous roar of its tunneling echoes a long way. Silver It rapidly bores through the ground at 50 mph by squirming and twisting its massive, rugged body. Crystal As it digs through the ground, it absorbs many hard objects. This is what makes its body so solid. Stadium 2 It twists and squirms through the ground. The thunderous roar of its tunneling echoes a long way.
Generation III Ruby Onix has a magnet in its brain. It acts as a compass so that this Pokémon does not lose direction while it is tunneling. As it grows older, its body becomes increasingly rounder and smoother. Sapphire Onix has a magnet in its brain. It acts as a compass so that this Pokémon does not lose direction while it is tunneling. As it grows older, its body becomes increasingly rounder and smoother. Emerald There is a magnet in its brain that prevents an Onix from losing direction while tunneling. As it grows older, its body becomes steadily rounder and smoother. FireRed It usually lives underground. It searches for food while boring its way through the ground at 50 miles per hour. LeafGreen As it grows, the stone portions of its body harden to become similar to black-colored diamonds.
Generation IV Diamond When it travels underground, it causes rumbling and tremors. It can move at 50 mph. Pearl It squirms through the ground using its long and rugged body. It always eats while burrowing. Platinum It burrows through the ground at a speed of 50 mph while feeding on large boulders. HeartGold It twists and squirms through the ground. The thunderous roar of its tunneling echoes a long way. SoulSilver {{{soulsilverdex}}}
Generation V Black {{{blackdex}}} White {{{whitedex}}} Black 2 {{{black2dex}}} White 2 {{{white2dex}}}
Generation VI X Unknown Y Unknown

Game locations

This Pokémon was unavailable prior to Generation I.
Generation I Red Blue Rare Rock Tunnel and Victory Road Blue (Japan) None Trade Yellow Rare Rock Tunnel and Victory Road
Generation II Gold Silver Common Rock Tunnel, Violet City (trade Bellsprout), Silver Cave, Victory Road, Union Cave Crystal Common Rock Tunnel, Violet City (trade Bellsprout), Silver Cave, Victory Road, Union Cave
Generation III Ruby Sapphire None Trade Emerald None Trade FireRed LeafGreen Common Victory Road, Rock Tunnel, and Sevault Canyon Colosseum None Trade XD None Trade
Generation IV Diamond Pearl Common Iron Island, Snowpoint Temple, Oreburgh Mine, Victory Road, Stark Mountain Platinum Common Iron Island, Oreburgh Mine, Victory Road, Wayward Cave HeartGold SoulSilver Common Violet City (trade Bellsprout), Union Cave, Mt. Silver, Ragged Cliff Gate, Victory Road, and Rock Tunnel Pal Park Mountain Pokéwalker None
Generation V Black White None Trade Black 2 White 2 None Trade Dream World None
Generation VI X Y None Trade

In side games

Game	Location
Pokémon Trozei!	Phobos Drill Endless Level 46 Forever Level 23 Mr. Who's Den
Pokémon Mystery Dungeon Red/Blue Rescue Team	Magma Cavern (21F-23F) Magma Cavern Pit (1F-2F) Southern Cavern (40F-50F)
Pokémon Mystery Dungeon Explorers of Time/Darkness	Mt. Travail (1F-19F)
Pokémon Rumble	Gravel Cave

Held items

Game		Held Item(s)
Red*	Blue*	Bitter Berry (100%)
Yellow*
FireRed	LeafGreen	Hard Stone (5%)

Base stats

Stat		Range
		At Lv. 50	At Lv. 100
HP: 35		95 - 142	180 - 274
Attack: 45		45 - 106	85 - 207
Defense: 160		148 - 233	292 - 460
Sp. Atk: 30		31 - 90	58 - 174
Sp. Def: 45		45 - 106	85 - 207
Speed: 70		67 - 134	130 - 262
Total: 385	Other Pokémon with this total
Minimum stats are calculated with 0 EVs, IVs of 0, and (if applicable) a hindering nature. Maximum stats are calculated with 252 EVs, IVs of 31, and (if applicable) a helpful nature. This Pokémon's Special base stat in Generation I was 30.

Type effectiveness

Under normal battle conditions in Generation V, this Pokémon is:

Damaged normally by: Normal ½× Fighting 2× Flying ½× Poison ¼× Ground 2× Rock ½× Bug 1× Ghost 1× Steel 2× Fire ½× Water 4× Grass 4× Electric 0× Psychic 1× Ice 2× Dragon 1× Dark 1× None

Weak to: Normal ½× Fighting 2× Flying ½× Poison ¼× Ground 2× Rock ½× Bug 1× Ghost 1× Steel 2× Fire ½× Water 4× Grass 4× Electric 0× Psychic 1× Ice 2× Dragon 1× Dark 1× None

Immune to: Normal ½× Fighting 2× Flying ½× Poison ¼× Ground 2× Rock ½× Bug 1× Ghost 1× Steel 2× Fire ½× Water 4× Grass 4× Electric 0× Psychic 1× Ice 2× Dragon 1× Dark 1× None

Resistant to: Normal ½× Fighting 2× Flying ½× Poison ¼× Ground 2× Rock ½× Bug 1× Ghost 1× Steel 2× Fire ½× Water 4× Grass 4× Electric 0× Psychic 1× Ice 2× Dragon 1× Dark 1× None

Learnset

By leveling up

|- style="text-align:center" | style="text-align:left" | rock | style="background:#915121" |  ground 

| style=" background:#FFF" | 4 | style=" background:#FFF" | 1 | style=" background:#FFF" | Onix | style="display:none; background:#FFF" | {{{6}}} Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Mlentry4 Template:Movelist/note

By tutoring

|- style="background:#CBC7AD" | colspan="13" | Bold indicates a move that gets STAB
Italic indicates a move that gets STAB only from an Evolution of this Pokémon
A colored initial indicates that the move is not available to be tutored in this game,
while a colored background indicates that the move is available. |} |}

Evolution

Unevolved Onix  Rock  Ground

Trade holding Metal Coat →

First Evolution 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
IV	Diamond	Pearl	Platinum		HeartGold	SoulSilver	Back
V	Black	White	Black 2	White 2			Back

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-Template:Type2 Pokémon to learn DragonBreath by leveling up.
• Of all the Pokémon that can evolve, Onix has the highest base Defense.
• Onix is the largest Pokémon that can legally hatch from an egg.

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

Notes

Super Smash Bros. series Games: Super Smash Bros. • Super Smash Bros. Melee • Super Smash Bros. Brawl Super Smash Bros. for Nintendo 3DS/Wii U • Super Smash Bros. Ultimate Characters: Pikachu • Jigglypuff • Mewtwo • Pichu Pokémon Trainer (Squirtle • Ivysaur • Charizard) • Lucario • Greninja • Incineroar Stages: Saffron City • Pokémon Stadium • Poké Floats • Pokémon Stadium 2 • Spear Pillar Prism Tower • Unova Pokémon League • Kalos Pokémon League Poké Ball and Master Ball: Abomasnow • Abra • Alolan Exeggutor • Alolan Raichu • Alolan Vulpix • Arceus • Articuno • Beedrill Bellossom • Bewear • Blastoise • Bonsly • Celebi • Chansey • Charizard • Chespin • Chikorita • Clefairy Cyndaquil • Darkrai • Dedenne • Deoxys • Ditto • Eevee • Electrode • Entei • Fennekin Fletchling • Gardevoir • Genesect • Giratina • Gogoat • Goldeen • Groudon • Gulpin • Hitmonlee Ho-Oh • Inkay • Jirachi • Keldeo • Koffing • Kyogre • Kyurem • Latias and Latios Lugia • Lunala • Manaphy • Marill • Marshadow • Meloetta • Meowth • Mew • Metagross • Mimikyu Moltres • Munchlax • Onix • Oshawott • Palkia • Piplup • Porygon2 • Pyukumuku • Raikou • Scizor • Snivy Snorlax • Solgaleo • Spewpa • Staryu • Starmie • Suicune • Swirlix • Tapu Koko • Togedemaru • Togepi Torchic • Unown • Venusaur • Victini • Vulpix • Weavile • Weezing • Wobbuffet • Xerneas • Zapdos • Zoroark Collectables: Trophies (Melee • Brawl • for Nintendo 3DS/Wii U) Stickers Spirits Misc: The Subspace Emissary • My Music • Final Smash • Pokémon Change • Brawl cameos

← #094: Gengar

Pokémon

#096: Drowzee →

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