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Onix

Onix (Japanese: イワーク, HepburnIwaaku) (ON-icks[1]) is a Rock/Ground-type Pokémon introduced in Generation I.

Biology[]

Physiology[]

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

Behavior[]

Onix spend most of their time burrowing through the earth, twisting and turning their massive bodies as they dig. They constantly eat while burrowing, consuming boulders, dirt, and whatever else they come across. These tunnels often later become homes and pathways for other subterranean Pokémon, such as Diglett and Druddigon.

Natural 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[]

Locations
Version(s) Area(s) Rarity
Red and Blue Rock Tunnel, Victory Road Common
Yellow Rock Tunnel, Victory Road Uncommon
Gold and Silver Rock Tunnel, Violet City, (trade Bellsprout), Mt. Silver, Victory Road, Union Cave Common
Crystal Rock Tunnel, Violet City, (trade Bellsprout), Mt. Silver, Victory Road, Union Cave Common
Ruby and Sapphire Trade None
FireRed and LeafGreen Victory Road, Rock Tunnel, and Sevault Canyon Common
Emerald Trade None
Diamond and Pearl Iron Island, Snowpoint Temple, Oreburgh Mine, Victory Road, Stark Mountain Common
Platinum Iron Island, Oreburgh Mine, Victory Road, Wayward Cave Common
HeartGold and SoulSilver Violet City (trade Bellsprout), Union Cave, Mt. Silver, Ragged Cliff Gate, Victory Road, Rock Tunnel Common
Black and White Relic Castle Rare
X and Y Glittering Cave Uncommon
Sun and Moon Transfer None
Let's Go, Pikachu! and Let's Go, Eevee! Mt. Moon, Rock Tunnel, Victory Road Uncommon
Sword and Shield Wild Area Uncommon

Side game locations[]

Locations
Game(s) Area(s)
Pokémon Trozei! Phobos Drill, Endless Level 46, Forever Level 23, Mr. Who's Den
Red Rescue Team & Blue Rescue Team Magma Cavern (21F-23F), Magma Cavern Pit (1F-2F), Southern Cavern (40F-50F)
Explorers of Time & Explorers of Darkness Mt. Travail (1F-19F)

Pokédex entries[]

  • Red and 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • 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.

  • Black

    It burrows through the ground at a speed of 50 mph while feeding on large boulders.

  • White

    It burrows through the ground at a speed of 50 mph while feeding on large boulders.

  • Black 2

    It burrows through the ground at a speed of 50 mph while feeding on large boulders.

  • White 2

    It burrows through the ground at a speed of 50 mph while feeding on large boulders.

  • 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

    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.

  • 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!

    Burrows at high speed in search of food. The tunnels it leaves are used as homes by Diglett.

  • Sword

    Flying through the darkness, it weakens enemies with ultrasonic waves that could crush stone. Its fangs finish the fight.

  • Shield

    It rapidly bores through the ground at 50 mph by squirming and twisting its massive, rugged body.

Stats[]

Stats
HP

35

Attack

45

Defense

160

Sp. Atk

30

Sp. Def

45

Speed

70

Total

385

Learnset[]

Leveling[]

TM/HM[]

Breeding[]

Breeding Generation VII
Move Father Power Accuracy PP Type Category
Block Sudowoodo, Nosepass, Probopass —% 5 Normal Status
Defense Curl Geodude, Geodude, Graveler, Graveler, Golem, Golem —% 40 Normal Status
Flail Sudowoodo, Dwebble, Crustle 100% 15 Normal Physical
Heavy Slam Golem, Golem 100% 10 Steel Physical
Rock Blast Geodude, Geodude, Graveler, Graveler, Golem, Golem, Nosepass, Probopass, Roggen rola, Boldore, Gigalith, Dwebble, Crustle 25 90% 10 Rock Physical
Rock Climb Ferrothorn 90 85% 20 Normal Physical
Rollout Geodude, Geodude, Graveler, Graveler, Ferroseed, Ferrothorn 30 90% 20 Rock Physical
Rototiller * Dwebble —% 10 Ground Status
Stealth Rock Geodude, Geodude, Graveler, Graveler, Golem, Golem, Onix, Steelix, Roggen rola, Boldore, Gigalith, Dwebble, Crustle —% 20 Rock Status
Wide GuardUSUM Probopass —% 10 Rock Status

Bold indicates this Pokémon receives STAB from this move.
Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.
* indicates this move requires chain breeding.
◊ indicates the father must learn this move in a previous generation.
♈ indicates the father must learn this move via a TM.

Breeding Generation VI
Move Father Power Accuracy PP Type Category Contest Category Appeal Jam
Block Sudowoodo, Nosepass, Probopass —% 5 Normal Status Cute 2 0 ♥
Defense Curl Geodude, Graveler, Golem —% 40 Normal Status Cute 2 0 ♥
Flail Sudowoodo, Dwebble, Crustle 100% 15 Normal Physical Cute 1 0 ♥
Heavy Slam Golem 100% 10 Steel Physical Tough 3 0 ♥
Rock Blast Geodude, Graveler, Golem, Nosepass, Probopass, Roggen rola, Boldore, Gigalith, Dwebble, Crustle 25 90% 10 Rock Physical Tough 1 0 ♥
Rock Climb Ferrothorn 90 85% 20 Normal Physical Tough 3 0 ♥
Rollout Geodude, Graveler, Golem, Ferroseed, Ferrothorn 30 90% 20 Rock Physical Cute 3 0 ♥
Rototiller * Dwebble —% 10 Ground Status Tough 1 0 ♥
Stealth Rock Geodude, Graveler, Golem, Onix, Steelix, Roggen rola, Boldore, Gigalith, Dwebble, Crustle —% 20 Rock Status Cool 2 0 ♥

Bold indicates this Pokémon receives STAB from this move.
Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.
* indicates this move requires chain breeding.
◊ indicates the father must learn this move in a previous generation.
♈ indicates the father must learn this move via a TM.

Breeding Generation V
Move Father Power Accuracy PP Type Category
Block Sudowoodo, Nosepass, Probopass —% 5 Normal Status
Defense Curl Geodude, Graveler, Golem —% 40 Normal Status
Flail Sudowoodo, Dwebble, Crustle 100% 15 Normal Physical
Heavy Slam Golem 100% 10 Steel Physical
Rock Blast Geodude, Graveler, Golem, Roggen rola, Boldore, Gigalith, Dwebble, Crustle 25 90% 10 Rock Physical
Rock Climb Ferrothorn 90 85% 20 Normal Physical
Rollout Geodude, Graveler, Golem, Ferroseed, Ferrothorn 30 90% 20 Rock Physical
Stealth Rock Geodude, Graveler, Golem, Onix, Steelix, Roggen rola, Boldore, Gigalith, Dwebble, Crustle —% 20 Rock Status

Bold indicates this Pokémon receives STAB from this move.
Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.
* indicates this move requires chain breeding.
◊ indicates the father must learn this move in a previous generation.
♈ indicates the father must learn this move via a TM.

Breeding Generation IV
Move Father Power Accuracy PP Type Category Contest Category Appeal
Block Sudowoodo, Nosepass, Probopass —% 5 Normal Status Cute 2
Defense Curl Geodude, Graveler, Golem —% 40 Normal Status Cute 2
Explosion Geodude, Graveler, Golem 250 100% 5 Normal Physical Beauty 0
Flail Sudowoodo 100% 15 Normal Physical Cute 2
Rock Blast Geodude, Graveler, Golem 25 80% 10 Rock Physical Tough 2
Rock Slide Sudowoodo, Nosepass, Probopass 75 90% 10 Rock Physical Tough 3
Rollout Geodude, Graveler, Golem 30 90% 20 Rock Physical Tough 2

Bold indicates this Pokémon receives STAB from this move.
Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.
* indicates this move requires chain breeding.
◊ indicates the father must learn this move in a previous generation.
♈ indicates the father must learn this move via a TM.

Breeding Generation II
Move Father Power Accuracy PP Type
Flail Sudowoodo 100% 15 Normal
Rock Slide Sudowoodo 75 90% 10 Rock

Bold indicates this Pokémon receives STAB from this move.
Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.
* indicates this move requires chain breeding.
◊ indicates the father must learn this move in a previous generation.
♈ indicates the father must learn this move via a TM.

Tutoring[]

This Pokémon learns no moves by Tutoring.

Tutoring Generation II
Move Power Accuracy PP Type
Bold indicates this Pokémon receives STAB from this move.
Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.

Sprites[]

Appearances[]

Anime[]

Brock Onix anime

Brock's Onix.

Brock received an Onix from his father, Flint, on his 10th birthday, as seen in a flashback in Having a Wailord of a Time. Onix was Brock's first Pokémon and has consistently been his most powerful Pokémon as well. Brock uses this in some occasions during his travels with Ash and Misty. In Pokémon Chronicles, Brock uses Onix for the last time to battle against his ditsy mother, Lola who is responsible for remodeling the Gym and her Mantine to put the Gym back to its former glory. Brock lent his Onix to his younger brother, Forrest until it evolves into Steelix in Grating Spaces! under his care.

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. In the Best Wishes series during the episode of, Expedition to Onix Island!, a shiny Onix is the leader of several normal Onix in the Onix Island. When Ash and his group are chased by most of the normal Onix, Meloetta did her best to sing her song to calm them down but its no effect until a shiny Onix loudly roars to stop them which causes all of the normal Onix leave and allowing Ash and the group to see its shiny Onix before leaving back to Cynthia's resthouse.

The most powerful Onix after both Brock and Roark was Grant's Onix which it was seen in his battle against Viola's Surskit at the Battle Chateau and its Gym battle against Ash's Froakie by trapping its opponents using Rock Tomb.

Trivia[]

  • Onix is the tallest Pokémon that is capable of evolution.
  • In Super Smash Bros., Onix is one of the Pokémon that can be freed from Poké Balls. During this time, it uses the move Rock Slide.

Origin[]

Onix is based on a snake and/or an earthworm. It may also be a pun on the terms "rock python."

Etymology[]

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

Iwāku comes from 岩 (iwa, rock) and possibly the root "arc," meaning "ruler."

Gallery[]

See also[]

v · d · e
#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151
See also
Generation I
v · d · e

List of Pokédexes

National Pokédex (list)
v · d · e
Characters · Locations
#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151
#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151–153
See also
Pokédex
v · d · e
Characters · Locations
#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151–175
#176–200
#201–225
#226–250
#251

Johto Pokédex

#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151–175
#176–200
#201–225
#226–250
#251–256
See also
Pokédex
v · d · e
Characters · Locations
#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151–151
#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151–175
#176–200
#201–210
See also
Pokédex
v · d · e
Characters · Locations
#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151–175
#176–200
#201–225
#226–242
See also
Pokédex
v · d · e
Characters · Locations
#000–024
#025–049
#050–074
#075–099
#100–124
#125–149
#150–155
#000–024
#025–049
#050–074
#075–099
#100–124
#125–149
#150–174
#175–199
#200–224
#225–249
#250–274
#275–299
See also
Pokédex
v · d · e
Characters · Locations

Central Kalos

#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151–153

Coastal Kalos

#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151–153

Mountain Kalos

#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151
See also
Pokédex
v · d · e
Characters · Locations

Mainland

#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151–175
#176–200
#201–225
#226–250
#251–275
#276–300
#301–325
#326–350
#351–375
#376–400

The Isle of Armor

#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151–175
#176–200
#201–210

The Crown Tundra

#001–025
#026–050
#051–075
#076–100
#101–125
#126–150
#151–175
#176–200
#201–210
See also
Pokédex
  1. ^ Silvestri, Cris (2015). Pokémon Deluxe Essential Handbook [Book]. p. 266. Scholastic. ISBN 978-0-545-79566-1.