Onix

Onix is a Rock/Ground type Pokémon introduced in Generation 1. It is known as the Rock Snake Pokémon.

Pokédex data

National № 095
Type Rock Ground
Species Rock Snake Pokémon
Height 8.8 m (28′10″)
Weight 210.0 kg (463.0 lbs)
Abilities 1. Rock Head
2. Sturdy
Weak Armor (hidden ability)
Local № 095 (Red/Blue/Yellow)
062 (Gold/Silver/Crystal)
095 (FireRed/LeafGreen)
034 (Diamond/Pearl)
034 (Platinum)
062 (HeartGold/SoulSilver)
071 (Black 2/White 2)
053 (X/Y — Coastal Kalos)
095 (Let's Go Pikachu/Let's Go Eevee)
178 (Sword/Shield)

Training

EV yield 1 Defense
Catch rate 45 (5.9% with PokéBall, full HP)
Base Friendship 70 (normal)
Base Exp. 77
Growth Rate Medium Fast

Breeding

Egg Groups Mineral
Gender 50% male, 50% female
Egg cycles 25 (6,169–6,425 steps)

Base stats

HP 35
180 274
Attack 45
85 207
Defense 160
292 460
Sp. Atk 30
58 174
Sp. Def 45
85 207
Speed 70
130 262
Total 385 Min Max

The ranges shown on the right are for a level 100 Pokémon. Maximum values are based on a beneficial nature, 252 EVs, 31 IVs; minimum values are based on a hindering nature, 0 EVs, 0 IVs.

Type defenses

The effectiveness of each type on Onix.

Evolution chart

#095
Onix
Rock · Ground
(trade holding Metal Coat)

Onix changes

Pokédex entries

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 DIGLETTs.
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
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
White
It burrows through the ground at a speed of 50 mph while feeding on large boulders.
Black 2
White 2
Opening its large mouth, it ingests massive amounts of soil and creates long tunnels.
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
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
Let's Go Eevee
Burrows at high speed in search of food. The tunnels it leaves are used as homes by Diglett.
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.

Moves learned by Onix

Moves learnt by level up

Onix learns the following moves in Pokémon Sword & Shield at the levels specified.

Lv.
Move
Type
Cat.
Power
Acc.
1BindNormal 15 85
1HardenNormal
1Rock ThrowRock 50 90
1TackleNormal 40 100
4Smack DownRock 50 100
8Rock PolishRock
12Dragon BreathDragon 60 100
16CurseGhost
20Rock SlideRock 75 90
24ScreechNormal 85
28Sand TombGround 35 85
32Stealth RockRock
36SlamNormal 80 75
40SandstormRock
44DigGround 80 100
48Iron TailSteel 100 75
52Stone EdgeRock 100 80
56Double-EdgeNormal 120 100

Egg moves

Onix learns the following moves via breeding in Pokémon Sword & Shield. Details and compatible parents can be found on the Onix egg moves page.

Move
Type
Cat.
Power
Acc.
BlockNormal
Defense CurlNormal
Dragon TailDragon 60 90
FlailNormal 100
Head SmashRock 150 80
RolloutRock 30 90
Wide GuardRock

Moves learnt by TM

Onix is compatible with these Technical Machines in Pokémon Sword & Shield:

Moves learnt by TR

Onix is compatible with these Technical Records in Pokémon Sword & Shield:

Moves learnt by level up

Onix learns the following moves in Pokémon Let's Go Pikachu & Let's Go Eevee at the levels specified.

Lv.
Move
Type
Cat.
Power
Acc.
1BindNormal 15 85
1HardenNormal
1Rock ThrowRock 50 90
1TackleNormal 40 100
5Stealth RockRock
10RageNormal 20 100
15ScreechNormal 85
20DigGround 80 100
25SlamNormal 80 75
30Rock SlideRock 75 90
35EarthquakeGround 100 100
40Iron TailSteel 100 75
45Double-EdgeNormal 120 100

Moves learnt by TM

Onix is compatible with these Technical Machines in Pokémon Let's Go Pikachu & Let's Go Eevee:

Onix sprites

Type Generation 1 Generation 2 Generation 3 Generation 4 Generation 5 Generation 6 Generation 7
Normal Onix  sprite from Red & Blue Onix  sprite from Silver Onix  sprite from Ruby & Sapphire Onix  sprite from Diamond & Pearl Onix  sprite from Black & White Onix  sprite from X & Y
Shiny Onix Shiny sprite from Silver Onix Shiny sprite from Ruby & Sapphire Onix Shiny sprite from Diamond & Pearl Onix Shiny sprite from Black & White Onix Shiny sprite from X & Y

Where to find Onix

Red
Blue
Yellow
Rock Tunnel, Victory Road
Gold
Silver
Crystal
Mt. Silver, Rock Tunnel, Union Cave, Violet City, Victory Road
Ruby
Sapphire
Trade/migrate from another game
FireRed
LeafGreen
Rock Tunnel, Sevault Canyon, Victory Road
Emerald Trade/migrate from another game
Diamond
Pearl
Iron Island, Oreburgh Mine, Snowpoint Temple, Stark Mountain, Victory Road
Platinum Iron Island, Oreburgh Mine, Victory Road, Wayward Cave
HeartGold
SoulSilver
Cliff Cave, Mt. Silver, Rock Tunnel, Union Cave, Violet City, Victory Road
Black
White
Relic Castle
Black 2
White 2
Twist Mountain, Victory Road, Clay Tunnel, Relic Passage, Underground Ruins
X Cyllage City, Glittering Cave
Y Glittering Cave
Omega Ruby
Alpha Sapphire
Granite Cave, Mirage Spots
Sun
Moon
Trade/migrate from another game
Ultra Sun
Ultra Moon
Ten Carat Hill
Let's Go Pikachu
Let's Go Eevee
Mt. Moon, Rock Tunnel, Victory Road
Sword
Shield
East Lake Axewell, Giant's Seat, Motostoke Riverbank

Other languages

English Onix
Japanese イワーク (Iwark)
German Onix
French Onix

Name origin

onyx
a type of rock