Onix (Pokémon)

For Pokémon GO information on this species, see the game's section.
← #0094: Gengar	Pokémon	#0096: Drowzee →
This article is about the species. For a specific instance of this species, see Onix (disambiguation).

Onix Rock Snake Pokémon イワーク Iwark #0095 Images on the Bulbagarden Archives
Type Rock Ground Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown Unknown
Abilities Rock Head or Sturdy Cacophony Cacophony Weak Armor Hidden Ability Cacophony Hidden Ability Cacophony Cacophony
Gender ratio Unknown 50% male, 50% female	Catch rate 45 (11.9%)
Breeding Egg Group Mineral Hatch time 25 cycles
Height 28'10" 8.8 m Onix 0'0" 0 m {{{form2}}} 0'0" 0 m {{{form3}}} 0'0" 0 m {{{form4}}}	Weight 463.0 lbs. 210.0 kg Onix 0 lbs. 0 kg {{{form2}}} 0 lbs. 0 kg {{{form3}}} 0 lbs. 0 kg {{{form4}}}
Mega Stone [[|]] [[|]]
Base experience yield 108 Gen. I-IV Unknown IV 77 V+	Leveling rate Medium Fast
EV yield Total: 1 Onix 0 HP 0 Atk 1 Def 0 Sp.Atk 0 Sp.Def 0 Speed 0 HP 0 Atk 0 Def 0 Sp.Atk 0 Sp.Def 0 Speed 0 HP 0 Atk 0 Def 0 Sp.Atk 0 Sp.Def 0 Speed 0 HP 0 Atk 0 Def 0 Sp.Atk 0 Sp.Def 0 Speed
Shape	Footprint {{{form2}}}
Pokédex color   Gray	Base friendship 70
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 introduced in Generation I.

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

(Specifics may differ in past games. Refer to Game data→Evolution data for more details).

Biology

Onix is a Pokémon composed of a giant chain of gray boulders that become smaller towards the tail. Its length makes it the tallest Rock-type Pokémon. It has black eyes and a rounded snout. On top of its head is a rocky spine. As it grows older, it becomes more rounded and smoother, eventually becoming similar to black diamonds. Inside its brain is a magnet that serves as an internal compass, guiding Onix wherever they need to go and prevents them from getting lost while digging.

Onix tunnels under the ground at over 50 miles (80 kilometers) per hour, which causes tremors and a terrifying roar that echoes a long way. Hard objects encountered while tunneling are absorbed into its body, which makes it very sturdy. It also consumes the boulders for food. The massive, winding tunnels it leaves behind are used as homes by Diglett. As seen in the Pokémon Stadium series, Onix is capable of rotating its head, or any part of its body, in a full 360 degrees. It is a very aggressive Pokémon that will constantly attack humans and other Pokémon when in pain, as seen in the anime. As seen in the Pokémon Adventures manga, Onix can be separated from its body segments in battle and be fine later on, either regenerating or reattaching to its body segments. It is said that an Onix that lives for about 100 years will evolve into a Steelix after its composition becomes more diamond-like. It can be found in mountains and caves.

Evolution

Onix evolves into Steelix.

(For specifics on this Pokémon's evolution in the games, refer to Game data→Evolution data.)

Unevolved Onix  Rock  Ground

→

First evolution Steelix  Steel  Ground

In the anime

Main series

Onix in the anime

Shiny Onix in the anime

Major appearances

Brock's Onix

Starting in Showdown in Pewter City, Brock used an Onix in his journeys in Kanto and Johto before giving it to his little brother, Forrest, for him to train in A Family That Battles Together Stays Together!. At some point before Grating Spaces!, it evolved into a Steelix.

Bruno's Onix

In To Master the Onixpected, Ash and his friends encountered a giant Onix. It was on a rampage until Bruno managed to pull a Sandslash out from two of its boulders. Bruno captured the Onix afterwards.

Crystal Onix

The Crystal Onix featured a special Onix whose body is made out of glass crystal. Ash and his friends helped a glass sculptor named Mateo search for it because Mateo believed it would help inspire him to be better at his craft.

Other

Onix debuted in Pokémon - I Choose You!, where it was used as the next Pokémon that a Trainer chose after his opponent's Gengar put their Nidorino to sleep with Hypnosis.

In Hello, Pummelo!, Drake used an Onix in the second round in the Orange League championship match against Ash. It battled Squirtle and was defeated.

In Tunnel Vision, multiple Onix were living in Onix Tunnel. They attacked anyone who attempted to pass through it. They were temporarily put to sleep by Jigglypuff's singing, but were eventually awakened by Team Rocket.

In Fight for the Light, Janina coated her Onix in wax for protection against Water attacks.

An Onix, dubbed "King Onix", appeared in Hooked on Onix. Team Rocket tricked King Onix into thinking Ash and his friends 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.

In Shapes of Things to Come, Roark used an Onix during his Gym battle against Paul. It went up against his Elekid before being defeated by Chimchar. In A Gruff Act to Follow!, it battled Ash and defeated his Turtwig and Pikachu. In O'er the Rampardos we Watched!, during Ash's rematch with Roark, Pikachu was able to defeat Onix.

In A Maze-ing Race!, an Onix rampaged around until it was forced to retreat.

In Expedition to Onix Island!, multiple Onix, including a Shiny one, lived on a deserted island. Ash and his friends went there to see the Shiny Onix.

In Breaking Titles at the Chateau!, Grant used an Onix at the Battle Chateau in a battle against Viola's Surskit, which Onix won. In Climbing the Walls!, Onix battled Froakie during a Gym battle against Ash and was defeated.

In Caring for a Mystery!, an Onix battled a wild Riolu after it accidentally climbed up on it. Ash later showed up with his Pikachu and helped save Riolu from Onix. After that, Ash and Riolu battled Onix until it fled. It reappeared in a flashback in An Adventure of Mega Proportions!.

Minor appearances

An Onix appeared in a fantasy in Dig Those Diglett!.

In Mewtwo Strikes Back and Mewtwo Strikes Back—Evolution, a Trainer's Alakazam was defeated by Mewtwo while it was serving Giovanni.

In Showdown at the Po-ké Corral, multiple Onix were living at Professor Oak's Laboratory.

In The Joy of Pokémon, a Trainer's Onix was treated by the Nurse Joy of an unnamed island.

In Meowth Rules!, the Golden Island villagers had an Onix.

In The Power of One, multiple Onix sensed the disturbance caused by Lawrence III.

An Onix appeared in a fantasy in The Rivalry Revival.

In The Fortune Hunters, an Onix was depicted in the Fortune Teller book.

An Onix appeared in a fantasy in Type Casting.

In Beauty and the Breeder, a Pokémon Breeder's Onix participated in a Pokémon breeding competition.

Two Onix appeared in Celebi: The Voice of the Forest. One was under the ownership of a Trainer, while the other appeared during the movie's intro, which was reused for Pokémon Heroes: Latios & Latias.

In a flashback in Throwing in the Noctowl, an Onix was defeated by Wings Alexander's then-Hoothoot.

An Onix appeared in the opening sequence of Destiny Deoxys.

In Lucario and the Mystery of Mew, multiple Onix were part of the feuding armies that were eventually placated by Sir Aaron in the past.

In All That Glitters is Not Golden!, an Onix evolved into a Steelix in a fantasy.

An Onix appeared in Pokémon Mystery Dungeon: Explorers of Sky - Beyond Time & Darkness.

In One Team, Two Team, Red Team, Blue Team!, Brock used an Onix provided by the Pokémon Summer Academy for the first leg of the Pokémon Triathlon.

An Onix appeared in Steeling Peace of Mind!.

An Onix appeared in Promoting Healthy Tangrowth!.

In A Rivalry to Gible On!, an Onix lived on Mt. Shady.

In Bucking the Treasure Trend!, an Onix attacked Team Rocket.

An Onix appeared in the opening sequence of Zoroark: Master of Illusions.

An Onix appeared in A Pokévision of Things to Come!.

An Onix appeared in Summer of Discovery! on a Pokévision video icon.

An Onix appeared in Volcanion and the Mechanical Marvel.

An Onix appeared in I Choose You!.

In Alola, Kanto!, an Onix chased Ash, Brock, Sophocles, and Kiawe at Professor Oak's Laboratory after being disturbed by Kiawe's Marowak.

In Raid Battle in The Ruins!, a Shiny Onix was part of Shane Seeker's Shiny Pokémon collection, as shown in his Pokédex.

An Onix appeared in a fantasy in A Chilling Curse!. However, this fantasy was removed in the dub, as it was used as part of an untranslatable Japanese wordplay.

In Advice to Goh!, Goh attempted to catch an Onix, but failed. The Onix was then quickly driven away by Gary's Blastoise, before it could attack Goh.

An Onix appeared in This Could be the Start of Something Big!.

An Onix appeared in Distant Blue Sky!.

Three Onix appeared in The Pendant That Starts It All: Part One.

An Onix appeared in HZ027.

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 50 miles per hour.

Episode Pokémon Source Entry BW087 Onix Ash's Pokédex Onix, the Rock Snake Pokémon. By twisting its large and powerful body, Onix can quickly bore through the ground at 50 miles per hour.

Episode Pokémon Source Entry XY020 Onix Serena's Pokédex Onix, the Rock Snake Pokémon. Onix takes in enormous amounts of soil through its mouth, creating long tunnels.

Pokémon Origins

Onix in Pokémon Origins

Brock's Onix

In File 1: Red, Red challenged Brock's Onix after defeating his Geodude. It took out most of Red's team but lost to his Charmander.

Bruno's Onix

In File 4: Charizard, Red challenged another Onix belonging to Bruno at the Pokémon League. He battled it with Scyther and won.

Pokémon Masters Animated Trailer

Onix in the Pokémon Masters Animated Trailer

Brock's Onix

In the Pokémon Masters Animated Trailer, Brock's Onix accompanied him, Scottie, and Rosa on a journey across Pasio.

GOTCHA!

Brock's Onix

An Onix briefly appeared in GOTCHA!, under the ownership of Brock.

Pokémon Evolutions

In The Show, an Onix briefly appeared under the ownership of a Trainer in Ecruteak City.

In the manga

Onix in The Electric Tale of Pikachu

Ash & Pikachu

Main article: Brock's Onix

Brock has an Onix in Ash & Pikachu.

The Electric Tale of Pikachu

Main article: Brock's Onix

Brock has an Onix in The Electric Tale of Pikachu.

Magical Pokémon Journey

An Onix appeared in Adventuring the Stone.

Pokémon Journeys: The Series

An Onix appeared in Caring for a Mystery!.

Pocket Monsters Diamond & Pearl

An Onix appeared in PDP12.

Pocket Monsters HeartGold & SoulSilver Go! Go! Pokéathlon

Takashi owns an Onix in Pocket Monsters HeartGold & SoulSilver Go! Go! Pokéathlon.

Pocket Monsters HGSS Jō's Big Adventure

Main article: Brock's Onix

Brock's Onix only appeared as a silhouette in JBA5 along with its Trainer and the other Kanto Gym Leaders.

Pocket Monsters Platinum: Aim to Be Battle King!!

An Onix appeared in PBK1.

An Onix appeared in PBK2.

Pokémon Adventures

Onix in Pokémon Adventures

Main article: Brock's Onix

Main article: Bruno's Onix

Onix debuted in Onix is On! as Brock's main Pokémon, but a picture of it was shown on a leaflet in Wanted: Pikachu!. Onix later continued to make appearances with Brock in various volumes onward.

An Onix appeared as a silhouette when Green talks about Mew in The Jynx Jinx.

Bruno battled a wild Onix in Ponyta Tale with his Hitmonlee.

Bruno owns an Onix, which first appeared in Punching Poliwrath. He battled Bill, Lt. Surge, and Red with it on Cerise Island. Onix later managed to carry Bruno and Koga off the collapsing island.

An Onix appeared in Can You Diglett? in a fantasy when Agatha and Lorelei explained to Red about how Pokémon and people cannot coexist with each other.

A wild Onix was seen on Cerise Island in Make Way for Magikarp.

An Onix appeared in The Last Battle XIII as one of the Pokémon sent to participate in the fight in Ilex Forest.

Roark has an Onix, which he used during Platinum's Gym battle in A Conk on Cranidos's Cranium.

A Trainer's Onix appeared in Clobbering Claydol.

An Onix appeared in Weavile Wobbles But It Won't Fall Down, under the ownership of a Hiker at the Safari Zone.

A wild Onix appeared in the Wild Area in Zap!! A Rising Beam of Light.

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.

Pokémon Diamond and Pearl Adventure!

An Onix appeared in In Search of the Legendary Pokémon Dialga!!, where it started rampaging and had to be battled by Hareta's Piplup and Mitsumi's Starly. Onix reappeared in a flashback in Hareta's Very First Pokémon Battle!!.

Hareta caught an Onix on Iron Island in Serious Training on Iron Island!!.

Byron has an Onix, which was used as an obstacle in a challenge in Challenge! The Fortress Of Steel!!.

An Onix was one of the Pokémon Charon conditioned into a fighting machine in Charon Must Be Stopped!.

Pokémon Gotta Catch 'Em All

An Onix appeared in The Challenge at Celadon University!.

An Onix appeared in GDZ46, under the ownership of Shu's mother.

An Onix appeared in GDZ51.

Pokémon Pocket Monsters

Main article: Brock's Onix

Main article: Bruno's Onix

Brock owns an Onix, which debuted in Bring Down the Powerful Opponent Onix!!.

An Onix appeared in The Legendary Pokémon Appears!!.

An Onix appeared in Aim to be the No. 1 Pokémon!.

An Onix appeared in Good Luck at the Big Pokémon Athletic Meet!.

An Onix appeared in Fierce Competition at the Pokémon Baseball Tournament!, where it was one of the Pokémon that took part in a baseball match.

Giovanni sent out his Onix to prevent Red from interfering with his plans on creating Mewtwo in Bring Down the Strongest Pokémon!!. It reappeared in Good-Bye, Pikachu?!.

An Onix appeared in Curry Showdown! Which is the Most Delicious? as one of the participants of a curry cooking competition.

An Onix appeared in Seize the Dream of One Million Yen!!.

Green's Onix first appeared in Red VS Green?!.

Bruno owns two Onix, both of whom debuted in Clefairy's Under Training!!.

An Onix appeared in I Want to Become Popular!!, under the ownership of a boy.

Professor Oak owns an Onix, which debuted in Save the Pokémon Zoo!!.

Pokémon Zensho

Main article: Brock's Onix

An Onix appeared in PZ02, under the ownership of Brock.

In the TCG

Main article: Onix (TCG)

Other appearances

Super Smash Bros.

Onix can be summoned via 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

Generation I Kanto #095 Red(JPN) (This entry was originally untranslated in English until it was reused in Pokémon FireRed.) Green Red(ENG) 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 Johto #062 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 Hoenn #— Kanto #095 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 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 Sinnoh #034 Johto #062 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 It rapidly bores through the ground at 50 mph by squirming and twisting its massive, rugged body.

Generation V Unova B2W2: #071 Black It burrows through the ground at a speed of 50 mph while feeding on large boulders. White Black 2 Opening its large mouth, it ingests massive amounts of soil and creates long tunnels. White 2

Generation VI Kalos Coastal #053 Hoenn #— X Burrows at high speed in search of food. The tunnels it leaves are used as homes by Diglett. Y It usually lives underground. It searches for food while boring its way through the ground at 50 miles per hour. Omega 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. Alpha Sapphire

Generation VII Alola #— Kanto #095 This Pokémon has no Pokédex entries in Sun, Moon, Ultra Sun, and Ultra Moon. Let's Go Pikachu Burrows at high speed in search of food. The tunnels it leaves are used as homes by Diglett. Let's Go Eevee

Generation VIII Galar #178 Sinnoh #034 Hisui #118 Sword As it digs through the ground, it absorbs many hard objects. This is what makes its body so solid. Shield It rapidly bores through the ground at 50 mph by squirming and twisting its massive, rugged body. Brilliant Diamond When it travels underground, it causes rumbling and tremors. It can move at 50 mph. Shining Pearl It squirms through the ground using its long and rugged body. It always eats while burrowing. Legends: Arceus This chain of immense stones resembles a giant serpent. Tremors shake the earth above as it burrows deep beneath the ground, feeding on boulders as it goes.

Generation IX Paldea #— Kitakami #— This Pokémon has no Pokédex entries in Generation IX.

Game locations

Generation I Red Blue Rock Tunnel, Victory Road Blue (Japan) Rock Tunnel, Victory Road Yellow Rock Tunnel, Victory Road

Generation II Gold Silver Rock Tunnel, Mt. Silver Cave, Victory Road, Union Cave Trade Bellsprout in Violet City Crystal Rock Tunnel, Mt. Silver Cave, Victory Road, Union Cave Trade Bellsprout in Violet City

Generation III Ruby Sapphire Trade Emerald Trade FireRed LeafGreen Rock Tunnel, Victory Road, Sevault Canyon Colosseum Trade XD Trade

Generation IV Diamond Pearl Iron Island, Snowpoint Temple, Oreburgh Mine, Victory Road, Stark Mountain Platinum Iron Island, Oreburgh Mine, Victory Road, Wayward Cave HeartGold SoulSilver Union Cave, Mt. Silver Cave, Cliff Cave, Victory Road, Rock Tunnel Safari Zone (Wasteland, default) Trade Bellsprout in Violet City Pal Park Mountain Pokéwalker Rugged Road, Dim Cave, and Night Sky's Edge

Generation V Black White Relic Castle Black 2 White 2 Relic Passage, Twist Mountain, Clay Tunnel, Underground Ruins, Victory Road Dream World Icy Cave

Generation VI X Cyllage City (Rock Smash) Glittering Cave Friend Safari (Rock) Y Glittering Cave Friend Safari (Rock) Omega Ruby Alpha Sapphire Granite Cave (hidden Pokémon*) Mirage Caves (north of Fortree City and southeast of Route 129)

Generation VII Sun Moon Trade Ultra Sun Ultra Moon Ten Carat Hill (Island Scan)Tu Let's Go Pikachu Let's Go Eevee Mt. Moon, Rock Tunnel, Victory Road

Generation VIII Sword Shield East Lake Axewell, Giant's Seat, Motostoke Riverbank Rolling Fields (Wanderer) Bridge Field, Dusty Bowl, Giant's Seat, Hammerlocke Hills, Rolling Fields, Stony Wilderness (Max Raid Battle) Brilliant Diamond Shining Pearl Iron Island, Snowpoint Temple, Oreburgh Mine, Victory Road, Stark Mountain Grand Underground - Rocky Cave, Volcanic Cave, Sandsear Cave, Big Bluff Cavern, Typhlo Cavern Legends: Arceus Obsidian Fieldlands: Space-time distortions Crimson Mirelands: near Scarlet Bog, near Diamond Settlement , near Lake Valor, massive mass outbreaks Cobalt Coastlands: massive mass outbreaks Coronet Highlands: Celestica Trail

Generation IX Scarlet Violet Unobtainable

In side games

Generation I Pinball Red and Blue Field: Rock Mountain, Indigo Plateau

Generation II This Pokémon is unavailable in Generation II side games.

Generation III Trozei! Phobos Drill, Endless Level 46, Forever Level 23, Mr. Who's Den MD Red MD Blue Magma Cavern (B21F-B23F, Magma Cavern Pit B1F), Southern Cavern (B40F-B50F)

Generation IV MD Time MD Darkness Mt. Travail (8F-14F) MD Sky Mt. Travail (8F-14F) Rumble Rocky Cave (Normal Mode B & S, Advanced Mode C & B)

Generation V Rumble Blast Canyon: Rugged Flats, Sunny Seashore Conquest Terrera, Cragspur Rumble U Vehicle Gallery: Slithering Trains

Generation VI Battle Trozei Safari Jungle: Stage 3Th Rumble World Fairy Land: Guardian's Peak (All Areas) Super MD Automatically added when connected with Lairon in Baram Town

Generation VII Rumble Rush Pinsir Sea, Castform Sea, Lugia Sea, Bulbasaur Sea, Arceus Sea, Charizard SeaFinal

Generation VIII MD DX Magma Cavern (23F-25F), Southern Cavern (40F-49F), Oddity Cave (5F-8F) Mystery House: Magma Cavern, Uproar Forest, Northern Range, Desert Region, Southern Cavern, Wyvern Hill, Remains Island New Snap Sweltering SandsDay Level 2+, Night, Barren BadlandsDay

Cross-Generation Shuffle Wacky Workshop: Stage 153 Marron Trail: Stage 655 Masters EX Starter Pokémon (Brock's) Variety sync pair scout (Bruno's) Egg Pokémon (Scottie/Bettie's)

In events

Games	Event	Language	Location	Level	Distribution period
GSC	Gotta Catch 'Em All Station! Sharpen Onix	English	United States	5	November 8 to 14, 2002; December 13 to 19, 2002

Held items

Game		Held Item(s)
Red*	Blue*	Bitter Berry (100%)
Yellow*
Gold	Silver	Bitter Berry (100%)
Crystal
FireRed	LeafGreen	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 (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.

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 IX, 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× Fairy 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× Fairy 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× Fairy 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× Fairy 1× None

Notes: If this Pokémon is given a Ring Target, the effectiveness of  Electric-type  moves is 1×.

Learnset

Onix is available in Sword and Shield, Brilliant Diamond and Shining Pearl, and Pokémon Legends: Arceus.

By leveling up

SwShBDSP

Generation VIII Other generations: I - II - III - IV - V - VI - VII - IX

Level   Move   Type   Cat.   Pwr.   Acc.   PP 011 Tackle Normal Physical 04040 100100% 35 011 Harden Normal Status 0000— 00——% 30 011 Bind Normal Physical 01515 08585% 20 011 Rock Throw Rock Physical 05050 09090% 15 044 Smack Down Rock Physical 05050 100100% 15 088 Rock Polish Rock Status 0000— 00——% 20 1212 Dragon Breath Dragon Special 06060 100100% 20 1616 Curse Ghost Status 0000— 00——% 10 2020 Rock Slide Rock Physical 07575 09090% 10 2424 Screech Normal Status 0000— 08585% 40 2828 Sand Tomb Ground Physical 03535 08585% 15 3232 Stealth Rock Rock Status 0000— 00——% 20 3636 Slam Normal Physical 08080 07575% 20 4040 Sandstorm Rock Status 0000— 00——% 10 4444 Dig Ground Physical 08080 100100% 10 4848 Iron Tail Steel Physical 100100 07575% 15 5252 Stone Edge Rock Physical 100100 08080% 5 5656 Double-Edge Normal Physical 120120 100100% 15

Bold indicates a move that gets STAB when used by Onix Italic indicates a move that gets STAB only when used by an evolution of Onix Click on the generation numbers at the top to see level-up moves from other generations

LA

Generation VIII Other generations: I - II - III - IV - V - VI - VII - IX

Learn Mastery  Move   Type   Cat.   Power   Accuracy   PP Base  St.   Ag.  Base  St.  1 10 Rollout Rock Physical 40 50 30 90% 100% 20 6 15 Tackle Normal Physical 40 50 30 100% 100% 30 11 20 Bulldoze Ground Physical 60 75 45 100% 100% 20 18 28 Rock Slide Rock Physical 75 90 60 90% 100% 10 25 35 Stealth Rock Rock Physical 40 50 30 100% 100% 20 34 45 High Horsepower Ground Physical 85 105 65 95% 100% 10 43 54 Iron Tail Steel Physical 100 120 80 75% 90% 5

Bold indicates a move that gets STAB when used by Onix Italic indicates a move that gets STAB only when used by an evolution of Onix Click on the generation numbers at the top to see level-up moves from other generations

By TM/TR

SwSh

Generation VIII Other generations: I - II - III - IV - V - VI - VII - IX

TM   Move   Type   Cat.   Pwr.   Acc.   PP  TM15 TM15 Dig Ground Physical 08080 100}}100% 10 TM16 TM16 Screech Normal Status 0000— 085}}85% 40 TM20 TM20 Self-Destruct Normal Physical 200200 100}}100% 5 TM21 TM21 Rest Psychic Status 0000— 00—}}—% 10 TM22 TM22 Rock Slide Rock Physical 07575 090}}90% 10 TM24 TM24 Snore Normal Special 05050 100}}100% 15 TM25 TM25 Protect Normal Status 0000— 00—}}—% 10 TM26 TM26 Scary Face Normal Status 0000— 100}}100% 10 TM31 TM31 Attract Normal Status 0000— 100}}100% 15 TM32 TM32 Sandstorm Rock Status 0000— 00—}}—% 10 TM34 TM34 Sunny Day Fire Status 0000— 00—}}—% 5 TM39 TM39 Facade Normal Physical 07070 100}}100% 20 TM48 TM48 Rock Tomb Rock Physical 06060 095}}95% 15 TM49 TM49 Sand Tomb Ground Physical 03535 085}}85% 15 TM54 TM54 Rock Blast Rock Physical 02525 090}}90% 10 TM57 TM57 Payback Dark Physical 05050 100}}100% 10 TM76 TM76 Round Normal Special 06060 100}}100% 15 TM81 TM81 Bulldoze Ground Physical 06060 100}}100% 20 TM97 TM97 Brutal Swing Dark Physical 06060 100}}100% 20 TM98 TM98 Stomping Tantrum Ground Physical 07575 100}}100% 10 TM99 TM99 Breaking Swipe Dragon Physical 06060 100}}100% 15 TR01 TR01 Body Slam Normal Physical 08585 100}}100% 15 TR10 TR10 Earthquake Ground Physical 100100 100}}100% 10 TR20 TR20 Substitute Normal Status 0000— 00—}}—% 10 TR26 TR26 Endure Normal Status 0000— 00—}}—% 10 TR27 TR27 Sleep Talk Normal Status 0000— 00—}}—% 10 TR31 TR31 Iron Tail Steel Physical 100100 075}}75% 15 TR37 TR37 Taunt Dark Status 0000— 100}}100% 20 TR51 TR51 Dragon Dance Dragon Status 0000— 00—}}—% 20 TR52 TR52 Gyro Ball Steel Physical 0000— 100}}100% 5 TR62 TR62 Dragon Pulse Dragon Special 08585 100}}100% 10 TR67 TR67 Earth Power Ground Special 09090 100}}100% 10 TR70 TR70 Flash Cannon Steel Special 08080 100}}100% 10 TR74 TR74 Iron Head Steel Physical 08080 100}}100% 15 TR75 TR75 Stone Edge Rock Physical 100100 080}}80% 5 TR76 TR76 Stealth Rock Rock Status 0000— 00—}}—% 20 TR79 TR79 Heavy Slam Steel Physical 0000— 100}}100% 10 TR87 TR87 Drill Run Ground Physical 08080 095}}95% 10 TR94 TR94 High Horsepower Ground Physical 09595 095}}95% 10 TR99 TR99 Body Press Fighting Physical 08080 100}}100% 10

Bold indicates a move that gets STAB when used by Onix Italic indicates a move that gets STAB only when used by an evolution of Onix Click on the generation numbers at the top to see TM moves from other generations

BDSP

Generation VIII Other generations: I - II - III - IV - V - VI - VII - IX

TM   Move   Type   Cat.   Pwr.   Acc.   PP  TM05 TM05 Roar Normal Status 0000— 00—}}—% 20 TM11 TM11 Sunny Day Fire Status 0000— 00—}}—% 5 TM12 TM12 Taunt Dark Status 0000— 100}}100% 20 TM17 TM17 Protect Normal Status 0000— 00—}}—% 10 TM23 TM23 Iron Tail Steel Physical 100100 075}}75% 15 TM26 TM26 Earthquake Ground Physical 100100 100}}100% 10 TM28 TM28 Dig Ground Physical 08080 100}}100% 10 TM32 TM32 Double Team Normal Status 0000— 00—}}—% 15 TM37 TM37 Sandstorm Rock Status 0000— 00—}}—% 10 TM39 TM39 Rock Tomb Rock Physical 06060 095}}95% 15 TM41 TM41 Torment Dark Status 0000— 100}}100% 15 TM42 TM42 Facade Normal Physical 07070 100}}100% 20 TM44 TM44 Rest Psychic Status 0000— 00—}}—% 10 TM45 TM45 Attract Normal Status 0000— 100}}100% 15 TM58 TM58 Endure Normal Status 0000— 00—}}—% 10 TM59 TM59 Dragon Pulse Dragon Special 08585 100}}100% 10 TM64 TM64 Explosion Normal Physical 250250 100}}100% 5 TM66 TM66 Payback Dark Physical 05050 100}}100% 10 TM69 TM69 Rock Polish Rock Status 0000— 00—}}—% 20 TM71 TM71 Stone Edge Rock Physical 100100 080}}80% 5 TM74 TM74 Gyro Ball Steel Physical 0000— 100}}100% 5 TM76 TM76 Stealth Rock Rock Status 0000— 00—}}—% 20 TM77 TM77 Psych Up Normal Status 0000— 00—}}—% 10 TM80 TM80 Rock Slide Rock Physical 07575 090}}90% 10 TM82 TM82 Sleep Talk Normal Status 0000— 00—}}—% 10 TM83 TM83 Bulldoze Ground Physical 06060 100}}100% 20 TM87 TM87 Swagger Normal Status 0000— 085}}85% 15 TM90 TM90 Substitute Normal Status 0000— 00—}}—% 10 TM91 TM91 Flash Cannon Steel Special 08080 100}}100% 10 TM96 TM96 Strength Normal Physical 08080 100}}100% 15 TM98 TM98 Rock Smash Fighting Physical 04040 100}}100% 15 XTM100 TM100 Rock Climb Normal Physical 09090 085}}85% 20

Bold indicates a move that gets STAB when used by Onix Italic indicates a move that gets STAB only when used by an evolution of Onix Click on the generation numbers at the top to see TM moves from other generations

By breeding

SwSh

Generation VIII Other generations: II - III - IV - V - VI - VII - IX

Parent   Move   Type   Cat.   Pwr.   Acc.   PP  Block Normal Status — —% 5 Defense Curl* Normal Status — —% 40 Dragon Tail Dragon Physical 60 90% 10 Flail Normal Physical — 100% 15 Head Smash Rock Physical 150 80% 5 Rollout Rock Physical 30 90% 20 Wide Guard Rock Status — —% 10

Moves marked with an asterisk (*) must be chain bred onto Onix in Generation VIII Moves marked with a double dagger (‡) can only be bred from a Pokémon who learned the move in an earlier generation. Moves marked with a superscript game abbreviation can only be bred onto Onix in that game. Bold indicates a move that gets STAB when used by Onix Italic indicates a move that gets STAB only when used by an evolution of Onix Click on the generation numbers at the top to see Egg moves from other generations

BDSP

Generation VIII Other generations: II - III - IV - V - VI - VII - IX

Parent   Move   Type   Cat.   Pwr.   Acc.   PP  Block Normal Status — —% 5 Defense Curl Normal Status — —% 40 Dragon Tail^ Dragon Physical 60 90% 10 Flail Normal Physical — 100% 15 Head Smash Rock Physical 150 80% 5 Heavy Slam Steel Physical — 100% 10 Rock Blast Rock Physical 25 90% 10 Rollout Rock Physical 30 90% 20 Wide Guard Rock Status — —% 10

Moves marked with an asterisk (*) must be chain bred onto Onix in Generation VIII Moves marked with a double dagger (‡) can only be bred from a Pokémon who learned the move in an earlier generation. Moves marked with a superscript game abbreviation can only be bred onto Onix in that game. Bold indicates a move that gets STAB when used by Onix Italic indicates a move that gets STAB only when used by an evolution of Onix Click on the generation numbers at the top to see Egg moves from other generations

By tutoring

SwShBDSP

Generation VIII Other generations: II - III - IV - V - VI - VII - IX

Game   Move   Type   Cat.   Pwr.   Acc.   PP  Sw Sh EP BD SP Meteor Beam Rock Special 120 90% 10 Sw Sh EP BD SP Scorching Sands Ground Special 70 100% 10

Bold indicates a move that gets STAB when used by Onix Italic indicates a move that gets STAB only when used by an evolution of Onix Click on the generation numbers at the top to see Move Tutor moves from other generations

LA

Generation VIII Other generations: I - II - III - IV - V - VI - VII - IX

Game   Move   Type   Cat.   Power   Accuracy   PP  Base  St.   Ag.  Base  St.  LA Bulldoze Ground Physical 60 75 45 100% 100% 20 LA Earth Power Ground Special 80 100 60 100% 100% 10 LA Flash Cannon Steel Special 80 100 60 100% 100% 10 LA High Horsepower Ground Physical 85 105 65 95% 100% 10 LA Iron Head Steel Physical 80 100 60 100% 100% 10 LA Iron Tail Steel Physical 100 120 80 75% 90% 5 LA Power Shift Normal Status — — — —% —% 10 LA Rest Psychic Status — — — —% —% 10 LA Rock Slide Rock Physical 75 90 60 90% 100% 10 LA Rock Smash Fighting Physical 40 50 30 100% 100% 20 LA Stealth Rock Rock Physical 40 50 30 100% 100% 20 LA Stone Edge Rock Physical 100 120 80 80% 90% 5

Bold indicates a move that gets STAB when used by Onix Italic indicates a move that gets STAB only when used by an evolution of Onix Click on the generation numbers at the top to see Move Tutor moves from other generations

By transfer from another generation

Generation VIII Other generations: I - II - IV - V - VI - VII - IX

Gen.   Move   Type   Cat.   Pwr.   Acc.   PP  I II III IV V VI VII Ancient Power Rock Special 06060 100}}100% 5 I II III IV V VI VII Bide × Normal Physical 0000— 00—}}—% 10 I II III IV V VI VII Captivate × Normal Status 0000— 100}}100% 20 I II III IV V VI VII Confide Normal Status 0000— 00—}}—% 20 I II III IV V VI VII Double Team Normal Status 0000— 00—}}—% 15 I II III IV V VI VII Explosion Normal Physical 250250 100}}100% 5 I II III IV V VI VII Fissure Ground Physical 0000— 030}}30% 5 I II III IV V VI VII Frustration × Normal Physical 0000— 100}}100% 20 I II III IV V VI VII Headbutt Normal Physical 07070 100}}100% 15 I II III IV V VI VII Hidden Power × Normal Special 06060 100}}100% 15 I II III IV V VI VII Mimic Normal Status 0000— 00—}}—% 10 I II III IV V VI VII Mud Sport × Ground Status 0000— 00—}}—% 15 I II III IV V VI VII Mud-Slap Ground Special 02020 100}}100% 10 I II III IV V VI VII Natural Gift × Normal Physical 0000— 100}}100% 15 I II III IV V VI VII Nature Power Normal Status 0000— 00—}}—% 20 I II III IV V VI VII Psych Up Normal Status 0000— 00—}}—% 10 I II III IV V VI VII Rage × Normal Physical 02020 100}}100% 20 I II III IV V VI VII Return × Normal Physical 0000— 100}}100% 20 I II III IV V VI VII Roar Normal Status 0000— 00—}}—% 20 I II III IV V VI VII Rock Climb × Normal Physical 09090 085}}85% 20 I II III IV V VI VII Rock Smash Fighting Physical 04040 100}}100% 15 I II III IV V VI VII Rototiller × Ground Status 0000— 00—}}—% 10 I II III IV V VI VII Secret Power × Normal Physical 07070 100}}100% 20 I II III IV V VI VII Skull Bash Normal Physical 130130 100}}100% 10 I II III IV V VI VII Strength Normal Physical 08080 100}}100% 15 I II III IV V VI VII Swagger Normal Status 0000— 085}}85% 15 I II III IV V VI VII Take Down Normal Physical 09090 085}}85% 20 I II III IV V VI VII Torment Dark Status 0000— 100}}100% 15 I II III IV V VI VII Toxic Poison Status 0000— 090}}90% 10 I II III IV V VI VII Twister Dragon Special 04040 100}}100% 20

Transferred Pokémon only retain these moves in Pokémon Sword and Shield A striped background indicates a generation in which the move can only be obtained via event or as a special move Bold indicates a move that gets STAB when used by Onix Italic indicates a move that gets STAB only when used by an evolution of Onix × indicates a move that cannot be used in Sword and Shield Click on the generation numbers at the top to see transfer-only moves for other generations

Anime-only moves

Move	Type	Episode
Wrap	Normal	Fight for the Light!

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, Explorers of Darkness, and Explorers of Sky Body size: 4 Recruit rate: 1% IQ group: E
Pokémon Super Mystery Dungeon Body size: Gigantic (9 tiles) How to Recruit: Introduced by Lairon Connected to: Sandshrew, Sandslash, Lairon, Rhyperior Connection Orb Set: 3 Phrases Normal I like digging! Let's make tunnels for fun! Low HP (< 50%) I can't summon up power...
Pokémon Rumble Attack ● Defense ●●●● Speed ●●●			Pokémon Rumble Blast Attack ● Defense ●●●● Speed ●●●
Pokémon Rumble Rush Walking Speed: 1.63 seconds Base HP: 43 Base Attack: 72 Base Defense: 60 Base Speed: 60
Pokémon Conquest HP: ★ Move: Rock Tomb Attack: ★ Ability 1: Sturdy Ability 2: Jagged Edge Ability 3: Frighten Defense: ★★★★ Speed: ★★★ Evolves into Steelix after knocking out a Warrior's Pokémon in a manner that allows recruitment, while its own Warrior is equipped with a Metal Coat Range: 2 Perfect Links: Gen'an and Nobufusa
Pokémon Battle Trozei Rock Attack Power: ★★★★★			Pokémon Shuffle Rock Attack Power: 50 - 100 5 #180 Eject Removes one non-Support Pokémon icon without fail. Swappable Skill(s): Power of 5+, Rockify+
Pokémon GO Base HP: 111 Base Attack: 85 Base Defense: 232 Egg Distance: N/A* Buddy Distance: 5 km Evolution Requirement: 50 + 1 Fast Attacks: Rock Throw, Tackle Charged Attacks: Sand Tomb*, Stone Edge, Heavy Slam*, Breaking Swipe*, Iron Head†, Rock Slide†, Frustration, Return
New Pokémon Snap Photodex entry #137 Onix can burrow as effortlessly through rock walls as it can through a sea of sand. Other Pokémon make their dens in the tunnels it leaves in its wake.

Evolution data

Onix evolves into Steelix when traded while holding a Metal Coat. Onix cannot evolve into Steelix in Pokémon FireRed and LeafGreen before the player obtains the National Pokédex, as its evolution will be interrupted. Onix also cannot evolve into Steelix in Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, as Steelix is not present in those games. In Pokémon Legends: Arceus, Onix evolves into Steelix when exposed to a Metal Coat.

Unevolved Onix  Rock  Ground

Trade holding Metal Coat →

First evolution Steelix  Steel  Ground

Sprites

Generation I Red Green Red Blue Yellow Front Back Front Back Front Back
Generation II Gold Silver Crystal Front Back Front Back Front Back
Generation III Ruby Sapphire Emerald FireRed LeafGreen Front Back Front Back Front Back
Generation IV Diamond Pearl Platinum HeartGold SoulSilver Front Back Front Back Front Back
Generation V Black White Black 2 White 2 Front Back Front Back
Generation VI X Y Omega Ruby Alpha Sapphire Front Back Front Back
Generation VII Sun Moon Ultra Sun Ultra Moon Front Back Front Back Let's Go, Pikachu! Let's Go, Eevee!
Generation VIII Sword Shield Legends: Arceus
This Pokémon is unavailable in Generation IX.
Cross-Generation HOME

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

Other sprites

Flex in Pokémon Super Contests	Gem in Pokémon Super Contests

Trivia

• Onix is the heaviest and tallest unevolved Pokémon.
• Onix is the only unevolved Pokémon that is used in the Pokémon World Tournament by Trainers beyond the right attendant, being used in all of Brock's teams.
• The Onix line is the only multi-stage evolutionary family which can be completely acquired with in-game trades. However, this is only possible in Pokémon HeartGold and SoulSilver, in which the player can trade Bellsprout for Onix in Violet City, and any Pokémon for Steelix in Olivine City.
• The Lagging Tail held item resembles the end of Onix's tail.
• Onix is the only Gigantic Pokémon that can evolve.
• Onix has the highest Defense stat of all unevolved Pokémon.

Origin

Onix's design may be a visual pun on a rock python or an earthworm. Its great size could have been inspired by the Mongolian death worm, an earthworm-like creature noted for its colossal length (compared to regular worms) of up to 7 feet. The Onix lifestyle, living underground and ingesting massive amounts of soil while tunneling, is much closer to the earthworm lifestyle than the snake lifestyle. Earthworms eat soil and digest the organic material it contains (plant matter, living protozoa, rotifers, nematodes, bacteria, fungi, and other microorganisms).

Name origin

Onix may be derived from onyx (a mineral).

Iwark may be a combination of 岩 iwa (rock) and either ブルワーク bulwark or スネーク snake.

In other languages

Language Title Meaning Japanese イワーク Iwark From 岩 iwa and snake French Onix Same as English name Spanish Onix Same as English name German Onix Same as English name Italian Onix Same as English name Korean 롱스톤 Rongston From long and stone Mandarin Chinese 大岩蛇 Dàyánshé From 大 dà, 岩 yán, and 蛇 shé Cantonese Chinese 大岩蛇 Daaihngàahmsèh From 大 daaih, 岩 ngàahm, and 蛇 sèh

More languages Hebrew אוניקס Oniks Transcription of English name Hindi ऑनिक्स Onix Transcription of English name Russian Оникс Oniks Transcription of English name Thai อิวาร์ค Iwak Transcription of Japanese name

Related articles

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

External links

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← #0094: Gengar

Pokémon

#0096: Drowzee →

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