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Onix (Pokémon)

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094 #094: Gengar
Pokémon
#096: Drowzee 096
Onix
イワーク Iwark
#095
095Onix.png
Art by Ken Sugimori from FireRed and LeafGreen
Types
 Rock  Ground 
Species
Rock Snake Pokémon
Abilities
Rock Head or Sturdy
Exp. at Lv. 100
1,000,000
Regional Pokédex numbers
Kanto
#095
Johto
#062
Hoenn
#265*
Sinnoh
#034
Regional Browser numbers
Not in any regional Browser
Height
28'10"
Imperial
8.8m
Metric
Weight
463.0lbs
Imperial
210.0kg
Metric
Dex color
Gray
Footprint
 F095.png 
Body style
Body02.png
Catch rate
45
5.9%
Gender ratio
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.: 771*

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

It evolves into Steelix when traded holding a Metal Coat.

Contents

Biology

Physiology

Onix basically resembles a giant chain of gray boulders, with a rocky spine on its head. 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 meters.

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 its 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 craggy body. However, domesticated Onix will show signs of distress instead of attacking others.

Habitat

Onix can be found in mountains and caves, though they prefer underground tunnels with little light. It can also be found in craggy mountains and abandoned mines. It is most common in Kanto, Johto, and Sinnoh.

Diet

Main article: Pokémon food

Onix eats large boulders.

In the anime

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 Turtwig, followed by 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 Promoting Healthy Tangrowth!.

An Onix appeared in A Rivalry to Gible On!.

Pokédex entries

Episode Pokémon Pokédex 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.
This concludes the entries from the Diamond & Pearl series.

In the manga

Onix in Pokémon Adventures.

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

Pokémon Adventures

Onix debuts in Onix is On! of the Red, Green & Blue chapter as Brock's main Pokémon, however a picture of it is shown 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 Adventures 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

Pokédex entry
This Pokémon was unavailable prior to Generation I.
Generation I
Red
Blue
As it grows, the stone portions of its body harden to become similar to a diamond, but colored black.
Yellow
Burrows at high speed in search of food. The tunnels it leaves are used as homes by Diglett.
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.
Generation III
Ruby
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.
Ruby
{{{rubydex}}}
Sapphire
{{{sapphiredex}}}
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
LeafGreen
{{{frlgdex}}}
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
Pearl
{{{dpdex}}}
Diamond
Pearl
Platinum
{{{dpptdex}}}
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
SoulSilver
{{{hgssdex}}}
HeartGold
It twists and squirms through the ground. The thunderous roar of its tunneling echoes a long way.
SoulSilver
It rapidly bores through the ground at 50 mph by squirming and twisting its massive, rugged body.
Generation V
Black
White
Pokédex entry is unavailable at this time. Data will be entered when the Pokédex entry has been verified.
Black
{{{blackdex}}}
White
{{{whitedex}}}


Game locations

This Pokémon was unavailable prior to Generation I.
Generation I
Red Blue
Common Rock Tunnel and Victory Road
Yellow
Uncommon 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
Rugged Road, Dim Cave, and Night Sky's Edge
Generation V
Black White
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 Rocky Cave

Held items

Game Held Item(s)
Gold Silver Bitter Berry (100%)
Crystal
FireRed LeafGreen Hard Stone Hard Stone (5%)

Stats

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 a hindering nature.
  • Maximum stats are calculated with 252 EVs, IVs of 31, and a helpful nature.
  • This Pokémon's  Special  base stat in Generation I was 30.


Pokéathlon stats

Speed
3/4 ★★★
Power
2/2 ★★
Skill
1/2
Stamina
4/4 ★★★★
Jump
2/3 ★★
Total
12/15 ★★

Type effectiveness

Under normal battle conditions in Generation IV, this Pokémon is:
Weak to
Normal ½×
Fighting
Flying ½×
Poison ¼×
Ground
Rock ½×
Bug
Ghost
Steel
Fire ½×
Water
Grass
Electric
Psychic
Ice
Dragon
Dark
None
Resistant against
Normal ½×
Fighting
Flying ½×
Poison ¼×
Ground
Rock ½×
Bug
Ghost
Steel
Fire ½×
Water
Grass
Electric
Psychic
Ice
Dragon
Dark
None
Unaffected by
Normal ½×
Fighting
Flying ½×
Poison ¼×
Ground
Rock ½×
Bug
Ghost
Steel
Fire ½×
Water
Grass
Electric
Psychic
Ice
Dragon
Dark
None
Damaged normally by
Normal ½×
Fighting
Flying ½×
Poison ¼×
Ground
Rock ½×
Bug
Ghost
Steel
Fire ½×
Water
Grass
Electric
Psychic
Ice
Dragon
Dark
None

Learnset

By leveling up

Generation IV
Other generation learnsets: I - II - III
Level Move Type Cat. Pwr. Acc. PP Contest Appeal
Start Mud Sport Ground Status —% 15 Cute 2 ♥♥
Start Tackle Normal Physical 30 95% 35 Tough 3 ♥♥♥
Start Harden Normal Status —% 30 Tough 2 ♥♥
Start Bind Normal Physical 15 75% 20 Tough 0  
6 Screech Normal Status 85% 40 Smart 2 ♥♥
9 Rock Throw Rock Physical 50 90% 15 Tough 3 ♥♥♥
14 Rage Normal Physical 20 100% 20 Cool 0  
17 Rock Tomb Rock Physical 50 80% 10 Smart 2 ♥♥
22 Sandstorm Rock Status —% 10 Tough 2 ♥♥
25 Slam Normal Physical 80 75% 20 Tough 3 ♥♥♥
30 Rock Polish Rock Status —% 20 Tough 2 ♥♥
33 DragonBreath Dragon Special 60 100% 20 Cool 2 ♥♥
38 Iron TailDP Steel Physical 100 75% 15 Cool 2 ♥♥
38 CursePtHGSS ??? Status —% 10 Tough 0  
41 Sand TombDP Ground Physical 15 70% 15 Smart 0  
41 Iron TailPtHGSS Steel Physical 100 75% 15 Cool 2 ♥♥
46 Double-EdgeDP Normal Physical 120 100% 15 Tough 0  
46 Sand TombPtHGSS Ground Physical 15 70% 15 Smart 0  
49 Stone EdgeDP Rock Physical 100 80% 5 Tough 2 ♥♥
49 Double-EdgePtHGSS Normal Physical 120 100% 15 Tough 0  
54 Stone EdgePtHGSS Rock Physical 100 80% 5 Tough 2 ♥♥
Bold indicates a move that gets STAB
Italic indicates a move that gets STAB only from an evolution of this Pokémon

By TM/HM

Generation IV
Other generation learnsets: I - II - III
TM Move Type Cat. Pwr. Acc. PP Contest Appeal
TM05 Roar Normal Status 100% 20 Cool 2 ♥♥
TM06 Toxic Poison Status 85% 10 Smart 2 ♥♥
TM10 Hidden Power Normal Special 100% 15 Smart 1
TM11 Sunny Day Fire Status —% 5 Beauty 2 ♥♥
TM12 Taunt Dark Status 100% 20 Smart 0  
TM17 Protect Normal Status —% 10 Cute 0  
TM21 Frustration Normal Physical 100% 20 Cute 2 ♥♥
TM23 Iron Tail Steel Physical 100 75% 15 Cool 2 ♥♥
TM26 Earthquake Ground Physical 100 100% 10 Tough 2 ♥♥
TM27 Return Normal Physical 100% 20 Cute 2 ♥♥
TM28 Dig Ground Physical 80 100% 10 Smart 1
TM32 Double Team Normal Status —% 15 Cool 2 ♥♥
TM37 Sandstorm Rock Status —% 10 Tough 2 ♥♥
TM39 Rock Tomb Rock Physical 50 80% 10 Smart 2 ♥♥
TM41 Torment Dark Status 100% 15 Tough 0  
TM42 Facade Normal Physical 70 100% 20 Cute 2 ♥♥
TM43 Secret Power Normal Physical 70 100% 20 Smart 2 ♥♥
TM44 Rest Psychic Status —% 10 Cute 0  
TM45 Attract Normal Status 100% 15 Cute 2 ♥♥
TM58 Endure Normal Status —% 10 Tough 2 ♥♥
TM59 Dragon Pulse Dragon Special 90 100% 10 Smart 2 ♥♥
TM64 Explosion Normal Physical 250 100% 5 Beauty 0  
TM66 Payback Dark Physical 50 100% 10 Cool 1
TM69 Rock Polish Rock Status —% 20 Tough 2 ♥♥
TM71 Stone Edge Rock Physical 100 80% 5 Tough 2 ♥♥
TM74 Gyro Ball Steel Physical 100% 5 Beauty 2 ♥♥
TM76 Stealth Rock Rock Status —% 20 Cool 2 ♥♥
TM77 Psych Up Normal Status —% 10 Smart 0  
TM78 Captivate Normal Status 100% 20 Beauty 2 ♥♥
TM80 Rock Slide Rock Physical 75 90% 10 Tough 3 ♥♥♥
TM82 Sleep Talk Normal Status —% 10 Cute 3 ♥♥♥
TM83 Natural Gift Normal Physical 100% 15 Cool 2 ♥♥
TM87 Swagger Normal Status 90% 15 Cute 2 ♥♥
TM90 Substitute Normal Status —% 10 Smart 1
TM91 Flash Cannon Steel Special 80 100% 10 Smart 2 ♥♥
HM04 Strength Normal Physical 80 100% 15 Tough 3 ♥♥♥
HM06 Rock Smash Fighting Physical 40 100% 15 Tough 2 ♥♥
HM08 Rock Climb Normal Physical 90 85% 20 Cool 2 ♥♥
Bold indicates a move that gets STAB
Italic indicates a move that gets STAB only from an evolution of this Pokémon

By breeding

Generation IV
Other generation learnsets: II - III
Father Move Type Cat. Pwr. Acc. PP Contest Appeal
Sudowoodo
Nosepass, Probopass
Block Normal Status —% 5 Cute 2 ♥♥
Geodude, Graveler, Golem Defense Curl Normal Status —% 40 Cute 2 ♥♥
Geodude, Graveler, Golem Explosion Normal Physical 250 100% 5 Beauty 0  
Sudowoodo Flail Normal Physical 100% 15 Cute 2 ♥♥
Geodude, Graveler, Golem Rock Blast Rock Physical 25 80% 10 Tough 2 ♥♥
Sudowoodo
Nosepass, Probopass
Rock Slide Rock Physical 75 90% 10 Tough 3 ♥♥♥
Geodude, Graveler, Golem Rollout Rock Physical 30 90% 20 Tough 2 ♥♥
Bold indicates a move that gets STAB
Italic indicates a move that gets STAB from an evolution of this Pokémon
*Indicates a move only available by chain breeding

By tutoring

Generation IV
Other generation learnsets: II - III
Game Move Type Cat. Pwr. Acc. PP Contest Appeal
D P Pt HG SS AncientPower Rock Special 60 100% 5 Tough 2 ♥♥
D P Pt HG SS Block Normal Status —% 5 Cute 2 ♥♥
D P Pt HG SS Earth Power Ground Special 90 100% 10 Smart 2 ♥♥
D P Pt HG SS Headbutt Normal Physical 70 100% 15 Tough 3 ♥♥♥
D P Pt HG SS Iron Head Steel Physical 80 100% 15 Tough 2 ♥♥
D P Pt HG SS Mud-Slap Ground Special 20 100% 10 Cute 3 ♥♥♥
D P Pt HG SS Rollout Rock Physical 30 90% 20 Tough 2 ♥♥
D P Pt HG SS Snore Normal Special 40 100% 15 Cute 3 ♥♥♥
D P Pt HG SS Twister Dragon Special 40 100% 20 Cool 3 ♥♥♥
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.

Side game data

Pokémon Pinball
 Pin095.png Pin095.gif 
Acquisition: Catch
Pokémon Pinball RS
 N/A 
Not available
Pokémon Trozei!
 Trozeiani095.gif 
Rarity: Common
Pokémon Mystery Dungeon
Red Rescue Team and Blue Rescue Team
MDP095.png 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.
Partner phrases
51%-100% HP <name>, my HP is between 51% and 100%.
26%-50% HP <name>, my HP is between 26% and 50%.
1%-25% HP <name>, my HP is between 1% and 25%.
Level up Heheheh... Leveled up.
Pokémon Mystery Dungeon
Explorers of Time, Explorers of Darkness
,
and Explorers of Sky
MDP095.png Body size: 4
Recruit rate: 1%
IQ group: E
Pokémon Ranger
Group:  Normal  Poké Assist: None Field move: None
Loops: 0 Min. exp.: 0 Max. exp.: 0
Browser entry  
This Pokémon does not have a browser entry.
Pokémon Ranger: Shadows of Almia
Group:  Normal  Poké Assist: None Field move: None
Browser entry  
This Pokémon does not have a browser entry.
Pokémon Ranger: Guardian Signs
Group:  Normal  Poké Assist: None Field move: None
Browser entry  
This Pokémon does not have a browser entry.

Evolution

Onix
Unevolved
Onix
 Rock  Ground 
Metal Coat
Trade
holding Metal Coat


Steelix
First evolution
Steelix
 Steel  Ground 


Sprites

Gen Game
I Red Blue Yellow Red (Ja) Green Back
Spr 1b 095.png Spr 1y 095.png Spr 1g 095.png Spr b g1 095.png
II Gold Silver Crystal   Back
Spr 2g 095.png Spr 2s 095.png Spr 2c 095.gif Spr b g2 095.png
Spr 2g 095 s.png Spr 2s 095 s.png Spr 2c 095 s.gif Spr b g2 095 s.png
III Ruby Sapphire Emerald FireRed LeafGreen Back
Spr 3r 095.png Spr 3e 095.gif Spr 3f 095.png Spr b g3 095.png
Spr 3r 095 s.png Spr 3e 095 s.gif Spr 3f 095 s.png Spr b g3 095 s.png
IV Diamond Pearl Platinum HeartGold SoulSilver Back
Spr 4d 095.png Spr 4p 095.png Spr 4h 095.png Spr b g4 095.png
Spr 4d 095 s.png Spr 4p 095 s.png Spr 4h 095 s.png Spr b g4 095 s.png
Onix 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.
  • 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.
  • 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.
  • Onix and Swablu are the only dual-typed Pokémon that have their primary type change during evolution.
    • In addition, Onix is the only Pokémon whose evolved form has a type-advantage against its predecessor, without that type being identical to both Pokémon (such as Dragon or Ghost).
  • Onix is one of four Pokémon which changes its primary type upon evolution (from Rock to Steel). The others are Azurill, Swablu and Eevee.

Origin

Onix is most likely based on a combination of a snake and earthworm. It has also 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.

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.

In other languages

Related articles

External links

Notes


Super Smash Bros. series
Games: Super Smash Bros.Super Smash Bros. MeleeSuper Smash Bros. Brawl
Characters: PikachuJigglypuffMewtwoPichuPokémon Trainer (SquirtleIvysaurCharizard) • Lucario
Stages: Saffron CityPokémon StadiumPoké FloatsPokémon Stadium 2Spear Pillar
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ElectrodeEnteiGardevoirGoldeenGroudonGulpinHitmonleeHo-OhJirachiKoffingKyogreLatias and Latios
LugiaManaphyMarillMeowthMewMetagrossMoltresMunchlaxOnixPiplupPorygon2RaikouScizor
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Stickers & Trophies: Melee Trophy listBrawl Sticker listBrawl Trophy list
Misc: The Subspace EmissaryMy MusicFinal SmashPokémon ChangeBrawl cameos
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