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 28′10″ (8.8 m)
Weight 463.0 lbs (210.0 kg)
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)

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

(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.

Moves learned by Onix

Moves learnt by level up

Onix learns the following moves in Pokémon Ultra Sun & Ultra Moon at the levels specified.

Lv.
Move
Type
Cat.
Power
Acc.
1BindNormal 15 85
1HardenNormal
1Mud SportGround
1TackleNormal 40 100
4CurseGhost
7Rock ThrowRock 50 90
10Rock TombRock 60 95
13RageNormal 20 100
16Stealth RockRock
19Rock PolishRock
20Gyro BallSteel 100
22Smack DownRock 50 100
25Dragon BreathDragon 60 100
28SlamNormal 80 75
31ScreechNormal 85
34Rock SlideRock 75 90
37Sand TombGround 35 85
40Iron TailSteel 100 75
43DigGround 80 100
46Stone EdgeRock 100 80
49Double-EdgeNormal 120 100
52SandstormRock

Egg moves

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

Move
Type
Cat.
Power
Acc.
BlockNormal
Defense CurlNormal
FlailNormal 100
Heavy SlamSteel 100
Rock BlastRock 25 90
Rock ClimbNormal 90 85
RolloutRock 30 90
RototillerGround
Stealth RockRock
Wide GuardRock

Move Tutor moves

Onix can be taught these attacks in Pokémon Ultra Sun & Ultra Moon from move tutors (details):

Move
Type
Cat.
Power
Acc.
BindNormal 15 85
BlockNormal
Dragon PulseDragon 85 100
Earth PowerGround 90 100
Iron HeadSteel 80 100
Iron TailSteel 100 75
SnoreNormal 50 100
Stealth RockRock
Stomping TantrumGround 75 100

Moves learnt by TM

Onix is compatible with these Technical Machines in Pokémon Ultra Sun & Ultra Moon:

TM
Move
Type
Cat.
Power
Acc.
5RoarNormal
6ToxicPoison 90
10Hidden PowerNormal 60 100
11Sunny DayFire
12TauntDark 100
17ProtectNormal
21FrustrationNormal 100
23Smack DownRock 50 100
26EarthquakeGround 100 100
27ReturnNormal 100
32Double TeamNormal
37SandstormRock
39Rock TombRock 60 95
41TormentDark 100
42FacadeNormal 70 100
44RestPsychic
45AttractNormal 100
48RoundNormal 60 100
59Brutal SwingDark 60 100
64ExplosionNormal 250 100
66PaybackDark 50 100
69Rock PolishRock
71Stone EdgeRock 100 80
74Gyro BallSteel 100
77Psych UpNormal
78BulldozeGround 60 100
80Rock SlideRock 75 90
82Dragon TailDragon 60 90
87SwaggerNormal 85
88Sleep TalkNormal
90SubstituteNormal
91Flash CannonSteel 80 100
96Nature PowerNormal
100ConfideNormal

Transfer-only moves

Onix can only learn these moves in previous generations. It must be taught the moves in the appropriate game and then transferred to Pokémon Ultra Sun & Ultra Moon.
Note: Generation 1 and 2 refer to the 3DS Virtual Console titles, not the physical cartridges.

Move
Type
Cat.
Power
Acc.
Method
BideNormal Generation 1 — TM
FissureGround Generation 1 — TM
Self-DestructNormal 200 100 Generation 1 — TM
Skull BashNormal 130 100 Generation 1 — TM
Take DownNormal 90 85 Generation 1 — TM
Body SlamNormal 85 100 Generation 3 — Move tutor
MimicNormal Generation 3 — Move tutor
CaptivateNormal 100 Generation 4 — TM
EndureNormal Generation 4 — TM
Natural GiftNormal 100 Generation 4 — TM
Ancient PowerRock 60 100 Generation 4 — Move tutor
HeadbuttNormal 70 100 Generation 4 — Move tutor
Mud-SlapGround 20 100 Generation 4 — Move tutor
TwisterDragon 40 100 Generation 4 — Move tutor
Rock SmashFighting 40 100 Generation 6 — TM
Secret PowerNormal 70 100 Generation 6 — TM
StrengthNormal 80 100 Generation 6 — HM

Moves learnt by level up

Onix learns the following moves in Pokémon Sun & Moon at the levels specified.

Lv.
Move
Type
Cat.
Power
Acc.
1BindNormal 15 85
1HardenNormal
1Mud SportGround
1TackleNormal 40 100
4CurseGhost
7Rock ThrowRock 50 90
10Rock TombRock 60 95
13RageNormal 20 100
16Stealth RockRock
19Rock PolishRock
20Gyro BallSteel 100
22Smack DownRock 50 100
25Dragon BreathDragon 60 100
28SlamNormal 80 75
31ScreechNormal 85
34Rock SlideRock 75 90
37Sand TombGround 35 85
40Iron TailSteel 100 75
43DigGround 80 100
46Stone EdgeRock 100 80
49Double-EdgeNormal 120 100
52SandstormRock

Egg moves

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

Move
Type
Cat.
Power
Acc.
BlockNormal
Defense CurlNormal
FlailNormal 100
Heavy SlamSteel 100
Rock BlastRock 25 90
Rock ClimbNormal 90 85
RolloutRock 30 90
RototillerGround
Stealth RockRock

Moves learnt by TM

Onix is compatible with these Technical Machines in Pokémon Sun & Moon:

TM
Move
Type
Cat.
Power
Acc.
5RoarNormal
6ToxicPoison 90
10Hidden PowerNormal 60 100
11Sunny DayFire
12TauntDark 100
17ProtectNormal
21FrustrationNormal 100
23Smack DownRock 50 100
26EarthquakeGround 100 100
27ReturnNormal 100
32Double TeamNormal
37SandstormRock
39Rock TombRock 60 95
41TormentDark 100
42FacadeNormal 70 100
44RestPsychic
45AttractNormal 100
48RoundNormal 60 100
59Brutal SwingDark 60 100
64ExplosionNormal 250 100
66PaybackDark 50 100
69Rock PolishRock
71Stone EdgeRock 100 80
74Gyro BallSteel 100
77Psych UpNormal
78BulldozeGround 60 100
80Rock SlideRock 75 90
82Dragon TailDragon 60 90
87SwaggerNormal 85
88Sleep TalkNormal
90SubstituteNormal
91Flash CannonSteel 80 100
96Nature PowerNormal
100ConfideNormal

Transfer-only moves

Onix can only learn these moves in previous generations. It must be taught the moves in the appropriate game and then transferred to Pokémon Sun & Moon.
Note: Generation 1 and 2 refer to the 3DS Virtual Console titles, not the physical cartridges.

Move
Type
Cat.
Power
Acc.
Method
BideNormal Generation 1 — TM
FissureGround Generation 1 — TM
Self-DestructNormal 200 100 Generation 1 — TM
Skull BashNormal 130 100 Generation 1 — TM
Take DownNormal 90 85 Generation 1 — TM
Body SlamNormal 85 100 Generation 3 — Move tutor
MimicNormal Generation 3 — Move tutor
CaptivateNormal 100 Generation 4 — TM
EndureNormal Generation 4 — TM
Natural GiftNormal 100 Generation 4 — TM
Ancient PowerRock 60 100 Generation 4 — Move tutor
HeadbuttNormal 70 100 Generation 4 — Move tutor
Mud-SlapGround 20 100 Generation 4 — Move tutor
TwisterDragon 40 100 Generation 4 — Move tutor
Rock SmashFighting 40 100 Generation 6 — TM
Secret PowerNormal 70 100 Generation 6 — TM
StrengthNormal 80 100 Generation 6 — HM

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

Other languages

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

Name origin

onyx
a type of rock