Onix

イワーク Iwaaku

Generation

Generation I

Pokédex

Index

Central Kalos

071

053

Evolves

From

None

Into

Steelix

Footprint

Cry

Onix (イワーク Iwaaku) 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.

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

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

Base Stats
HP	35
Attack	45
Defense	160
Sp. Atk	30
Sp. Def	45
Speed	70
Total	385

Learnset

Leveling

LevelingGeneration VII
Level	Move	Power	Accuracy	PP	Type	Category
1	Mud Sport	—	—%	15	Ground	Status
1	Tackle	40	100%	35	Normal	Physical
1	Harden	—	—%	30	Normal	Status
1	Bind	15	85%	20	Normal	Physical
4	Curse	—	—%	10	Ghost	Status
7	Rock Throw	50	90%	15	Rock	Physical
10	Rock Tomb	60	95%	15	Rock	Physical
13	Rage	20	100%	20	Normal	Physical
16	Stealth Rock	—	—%	20	Rock	Status
19	Rock Polish	—	—%	20	Rock	Status
20	Gyro Ball	—	100%	5	Steel	Physical
22	Smack Down	50	100%	15	Rock	Physical
25	Dragon Breath	60	100%	20	Dragon	Special
28	Slam	80	75%	20	Normal	Physical
31	Screech	—	85%	40	Normal	Status
34	Rock Slide	75	90%	10	Rock	Physical
37	Sand Tomb	35	85%	15	Ground	Physical
40	Iron Tail	100	75%	15	Steel	Physical
43	Dig	80	100%	10	Ground	Physical
46	Stone Edge	100	80%	5	Rock	Physical
49	Double-Edge	120	100%	15	Normal	Physical
52	Sandstorm	—	—%	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.

LevelingGeneration VI
Level	Move	Power	Accuracy	PP	Type	Category	Contest Category	Appeal	Jam
1	Mud Sport	—	—%	15	Ground	Status		2 ♥	0 ♥
1	Tackle	50	100%	35	Normal	Physical		4 ♥	0 ♥
1	Harden	—	—%	30	Normal	Status		2 ♥	0 ♥
1	Bind	15	85%	20	Normal	Physical		3 ♥	0 ♥
4	Curse	—	—%	10	Ghost	Status		3 ♥	0 ♥
7	Rock Throw	50	90%	15	Rock	Physical		4 ♥	0 ♥
10	Rock Tomb	60	95%	15	Rock	Physical		3 ♥	0 ♥
13	Rage	20	100%	20	Normal	Physical		1 ♥	3 ♥
16	Stealth Rock	—	—%	20	Rock	Status		2 ♥	0 ♥
19	Rock Polish	—	—%	20	Rock	Status		3 ♥	0 ♥
20	Gyro Ball	—	100%	5	Steel	Physical		1 ♥	0 ♥
22	Smack Down	50	100%	15	Rock	Physical		2 ♥	1 ♥
25	Dragon Breath	60	100%	20	Dragon	Special		2 ♥	3 ♥
28	Slam	80	75%	20	Normal	Physical		4 ♥	0 ♥
31	Screech	—	85%	40	Normal	Status		3 ♥	0 ♥
34	Rock Slide	75	90%	10	Rock	Physical		2 ♥	2 ♥
37	Sand Tomb	35	85%	15	Ground	Physical		3 ♥	0 ♥
40	Iron Tail	100	75%	15	Steel	Physical		4 ♥	0 ♥
43	Dig	80	100%	10	Ground	Physical		2 ♥	0 ♥
46	Stone Edge	100	80%	5	Rock	Physical		3 ♥	0 ♥
49	Double-Edge	120	100%	15	Normal	Physical		6 ♥	0 ♥
52	Sandstorm	—	—%	10	Rock	Status		2 ♥	1 ♥
Bold indicates this Pokémon receives STAB from this move. Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.

LevelingGeneration V
Level	Move	Power	Accuracy	PP	Type	Category
1^BW 1^B2W2	Mud Sport	—	—%	15	Ground	Status
1^BW 1^B2W2	Tackle	50	100%	35	Normal	Physical
1^BW 1^B2W2	Harden	—	—%	30	Normal	Status
1^BW 1^B2W2	Bind	15	85%	20	Normal	Physical
46^BW 4^B2W2	Curse	—	—%	10	Ghost	Status
9^BW 7^B2W2	Rock Throw	50	90%	15	Rock	Physical
14^BW 10^B2W2	Rage	20	100%	20	Normal	Physical
17^BW 13^B2W2	Rock Tomb	50	80%	10	Rock	Physical
38^BW 16^B2W2	Stealth Rock	—	—%	20	Rock	Status
30^BW 19^B2W2	Rock Polish	—	—%	20	Rock	Status
22^BW 22^B2W2	Smack Down	50	100%	15	Rock	Physical
41^BW 25^B2W2	DragonBreath	60	100%	20	Dragon	Special
33^BW 28^B2W2	Slam	80	75%	20	Normal	Physical
6^BW 31^B2W2	Screech	—	85%	40	Normal	Status
N/A^BW 34^B2W2	Rock Slide	75	90%	10	Rock	Physical
54^BW 37^B2W2	Sand Tomb	35	85%	15	Ground	Physical
49^BW 40^B2W2	Iron Tail	100	75%	15	Steel	Physical
N/A^BW 43^B2W2	Dig	80	100%	10	Ground	Physical
62^BW 46^B2W2	Stone Edge	100	80%	5	Rock	Physical
57^BW 49^B2W2	Double-Edge	120	100%	15	Normal	Physical
25^BW 52^B2W2	Sandstorm	—	—%	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.

LevelingGeneration IV
Level	Move	Power	Accuracy	PP	Type	Category	Contest Category	Appeal
1^DP 1^HGSSPt	Mud Sport	—	—%	15	Ground	Status		2 ♥
1^DP 1^HGSSPt	Tackle	30	95%	35	Normal	Physical		3 ♥
1^DP 1^HGSSPt	Harden	—	—%	30	Normal	Status		2 ♥
1^DP 1^HGSSPt	Bind	15	75%	20	Normal	Physical		0 ♥
6^DP 6^HGSSPt	Screech	—	85%	40	Normal	Status		2 ♥
9^DP 9^HGSSPt	Rock Throw	50	90%	15	Rock	Physical		3 ♥
14^DP 14^HGSSPt	Rage	20	100%	20	Normal	Physical		0 ♥
17^DP 17^HGSSPt	Rock Tomb	50	80%	10	Rock	Physical		2 ♥
22^DP 22^HGSSPt	Sandstorm	—	—%	10	Rock	Status		2 ♥
25^DP 25^HGSSPt	Slam	80	75%	20	Normal	Physical		3 ♥
30^DP 30^HGSSPt	Rock Polish	—	—%	20	Rock	Status		2 ♥
33^DP 33^HGSSPt	DragonBreath	60	100%	20	Dragon	Special		2 ♥
N/A^DP 38^HGSSPt	Curse	—	—%	10	???	Status		0 ♥
38^DP 41^HGSSPt	Iron Tail	100	75%	15	Steel	Physical		2 ♥
41^DP 46^HGSSPt	Sand Tomb	15	70%	15	Ground	Physical		0 ♥
46^DP 49^HGSSPt	Double-Edge	120	100%	15	Normal	Physical		0 ♥
49^DP 54^HGSSPt	Stone Edge	100	80%	5	Rock	Physical		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.

LevelingGeneration III
Level	Move	Power	Accuracy	PP	Type	Contest Category	Appeal	Jam
1	Tackle	30	95%	35	Normal		4 ♥	0 ♥
1	Screech	—	85%	40	Normal		1 ♥	3 ♥
8^FRLG	Bind	15	75%	20	Normal		3 ♥	0 ♥
9^RSE	Bind	15	75%	20	Normal		3 ♥	0 ♥
12^FRLG	Rock Throw	50	90%	15	Rock		2 ♥	0 ♥
13^RSE	Rock Throw	50	90%	15	Rock		2 ♥	0 ♥
19^FRLG	Harden	—	—%	30	Normal		2 ♥	0 ♥
21^RSE	Harden	—	—%	30	Normal		2 ♥	0 ♥
23^FRLG	Rage	20	100%	20	Normal		3 ♥	0 ♥
25^RSE	Rage	20	100%	20	Normal		3 ♥	0 ♥
30^FRLG	DragonBreath	60	100%	20	Dragon		1 ♥	3 ♥
33^RSE	Sandstorm	—	—%	10	Rock		3 ♥	0 ♥
34^FRLG	Sandstorm	—	—%	10	Rock		3 ♥	0 ♥
37^RSE	Slam	80	75%	20	Normal		2 ♥	1 ♥
41^FRLG	Slam	80	75%	20	Normal		2 ♥	1 ♥
45	Iron Tail	100	75%	15	Steel		1 ♥	4 ♥
49^RSE	Sand Tomb	15	70%	15	Ground		3 ♥	0 ♥
52^FRLG	Sand Tomb	15	70%	15	Ground		3 ♥	0 ♥
56^FRLG	Double-Edge	120	100%	15	Normal		6 ♥	0 ♥
57^RSE	Double-Edge	120	100%	15	Normal		6 ♥	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.

LevelingGeneration II
Level	Move	Power	Accuracy	PP	Type
1	Tackle	35	95%	35	Normal
1	Screech	—	85%	40	Normal
10	Bind	15	75%	20	Normal
14	Rock Throw	50	90%	15	Rock
23	Harden	—	—%	30	Normal
27	Rage	20	100%	20	Normal
36	Sandstorm	—	—%	10	Rock
40	Slam	80	75%	20	Normal
Bold indicates this Pokémon receives STAB from this move. Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.

LevelingGeneration I
Level	Move	Power	Accuracy	PP	Type
1	Tackle	35	95%	35	Normal
1	Screech	—	85%	40	Normal
15	Bind	15	75%	20	Normal
19	Rock Throw	50	65%	15	Rock
25	Rage	20	100%	20	Normal
33	Slam	80	75%	20	Normal
43	Harden	—	—%	30	Normal
Bold indicates this Pokémon receives STAB from this move. Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.

TM/HM

TMs and HMs Generation VII
TM/HM	Move	Power	Accuracy	PP	Type	Cat.
TM05	Roar	—	—%	20	Normal	Status
TM06	Toxic	—	90%	10	Poison	Status
TM10	Hidden Power	60	100%	15	Normal	Special
TM11	Sunny Day	—	—%	5	Fire	Status
TM12	Taunt	—	100%	20	Dark	Status
TM17	Protect	—	—%	10	Normal	Status
TM21	Frustration	—	100%	20	Normal	Physical
TM23	Smack Down	50	100%	15	Rock	Physical
TM26	Earthquake	100	100%	10	Ground	Physical
TM27	Return	—	100%	20	Normal	Physical
TM32	Double Team	—	—%	15	Normal	Status
TM37	Sandstorm	—	—%	10	Rock	Status
TM39	Rock Tomb	60	95%	15	Rock	Physical
TM41	Torment	—	100%	15	Dark	Status
TM42	Facade	70	100%	20	Normal	Physical
TM44	Rest	—	—%	10	Psychic	Status
TM45	Attract	—	100%	15	Normal	Status
TM48	Round	60	100%	15	Normal	Special
TM59	Brutal Swing	60	100%	20	Dark	Physical
TM64	Explosion	250	100%	5	Normal	Physical
TM66	Payback	50	100%	10	Dark	Physical
TM69	Rock Polish	—	—%	20	Rock	Status
TM71	Stone Edge	100	80%	5	Rock	Physical
TM74	Gyro Ball	—	100%	5	Steel	Physical
TM77	Psych Up	—	—%	10	Normal	Status
TM78	Bulldoze	60	100%	20	Ground	Physical
TM80	Rock Slide	75	90%	10	Rock	Physical
TM82	Dragon Tail	60	90%	10	Dragon	Physical
TM87	Swagger	—	85%	15	Normal	Status
TM88	Sleep Talk	—	—%	10	Normal	Status
TM90	Substitute	—	—%	10	Normal	Status
TM91	Flash Cannon	80	100%	10	Steel	Special
TM96	Nature Power	—	—%	20	Normal	Status
TM100	Confide	—	—%	20	Normal	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.

TMs and HMs Generation VI
TM/HM	Move	Power	Accuracy	PP	Type	Cat.	Contest Cat.	Appeal	Jam
TM05	Roar	—	—%	20	Normal	Status		3 ♥	0 ♥
TM06	Toxic	—	90%	10	Poison	Status		3 ♥	0 ♥
TM10	Hidden Power	60	100%	15	Normal	Special		3 ♥	0 ♥
TM11	Sunny Day	—	—%	5	Fire	Status		1 ♥	0 ♥
TM12	Taunt	—	100%	20	Dark	Status		2 ♥	1 ♥
TM17	Protect	—	—%	10	Normal	Status		2 ♥	0 ♥
TM21	Frustration	—	100%	20	Normal	Physical		2 ♥	3 ♥
TM23	Smack Down	50	100%	15	Rock	Physical		2 ♥	1 ♥
TM26	Earthquake	100	100%	10	Ground	Physical		2 ♥	1 ♥
TM27	Return	—	100%	20	Normal	Physical		4 ♥	0 ♥
TM28	Dig	80	100%	10	Ground	Physical		2 ♥	0 ♥
TM32	Double Team	—	—%	15	Normal	Status		1 ♥	0 ♥
TM37	Sandstorm	—	—%	10	Rock	Status		2 ♥	1 ♥
TM39	Rock Tomb	60	95%	15	Rock	Physical		3 ♥	0 ♥
TM41	Torment	—	100%	15	Dark	Status		2 ♥	0 ♥
TM42	Facade	70	100%	20	Normal	Physical		2 ♥	0 ♥
TM44	Rest	—	—%	10	Psychic	Status		1 ♥	0 ♥
TM45	Attract	—	100%	15	Normal	Status		2 ♥	0 ♥
TM48	Round	60	100%	15	Normal	Special		2 ♥	0 ♥
TM64	Explosion	250	100%	5	Normal	Physical		8 ♥	0 ♥
TM66	Payback	50	100%	10	Dark	Physical		2 ♥	0 ♥
TM69	Rock Polish	—	—%	20	Rock	Status		3 ♥	0 ♥
TM71	Stone Edge	100	80%	5	Rock	Physical		3 ♥	0 ♥
TM74	Gyro Ball	—	100%	5	Steel	Physical		1 ♥	0 ♥
TM77	Psych Up	—	—%	10	Normal	Status		2 ♥	0 ♥
TM78	Bulldoze	60	100%	20	Ground	Physical		2 ♥	2 ♥
TM80	Rock Slide	75	90%	10	Rock	Physical		2 ♥	2 ♥
TM82	Dragon Tail	60	90%	10	Dragon	Physical		3 ♥	0 ♥
TM87	Swagger	—	90%	15	Normal	Status		3 ♥	0 ♥
TM88	Sleep Talk	—	—%	10	Normal	Status		1 ♥	0 ♥
TM90	Substitute	—	—%	10	Normal	Status		2 ♥	0 ♥
TM91	Flash Cannon	80	100%	10	Steel	Special		4 ♥	0 ♥
TM94	Rock Smash^XY	40	100%	15	Fighting	Physical		4 ♥	0 ♥
TM94	Secret Power^ORAS	70	100%	20	Normal	Physical		1 ♥	0 ♥
TM96	Nature Power	—	—%	20	Normal	Status		1 ♥	0 ♥
TM100	Confide	—	—%	20	Normal	Status		3 ♥	0 ♥
HM04	Strength	80	100%	15	Normal	Physical		4 ♥	0 ♥
HM06	Rock Smash^ORAS	40	100%	15	Fighting	Physical		4 ♥	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.

TMs and HMs Generation V
TM/HM	Move	Power	Accuracy	PP	Type	Cat.
TM05	Roar	—	100%	20	Normal	Status
TM06	Toxic	—	90%	10	Poison	Status
TM10	Hidden Power	—	100%	15	Normal	Special
TM11	Sunny Day	—	—%	5	Fire	Status
TM12	Taunt	—	100%	20	Dark	Status
TM17	Protect	—	—%	10	Normal	Status
TM21	Frustration	—	100%	20	Normal	Physical
TM23	Smack Down	50	100%	15	Rock	Physical
TM26	Earthquake	100	100%	10	Ground	Physical
TM27	Return	—	100%	20	Normal	Physical
TM28	Dig	80	100%	10	Ground	Physical
TM32	Double Team	—	—%	15	Normal	Status
TM37	Sandstorm	—	—%	10	Rock	Status
TM39	Rock Tomb	50	80%	10	Rock	Physical
TM41	Torment	—	100%	15	Dark	Status
TM42	Facade	70	100%	20	Normal	Physical
TM44	Rest	—	—%	10	Psychic	Status
TM45	Attract	—	100%	15	Normal	Status
TM48	Round	60	100%	15	Normal	Special
TM64	Explosion	250	100%	5	Normal	Physical
TM66	Payback	50	100%	10	Dark	Physical
TM69	Rock Polish	—	—%	20	Rock	Status
TM71	Stone Edge	100	80%	5	Rock	Physical
TM74	Gyro Ball	—	100%	5	Steel	Physical
TM77	Psych Up	—	—%	10	Normal	Status
TM78	Bulldoze	60	100%	20	Ground	Physical
TM80	Rock Slide	75	90%	10	Rock	Physical
TM82	Dragon Tail	60	90%	10	Dragon	Physical
TM87	Swagger	—	90%	15	Normal	Status
TM90	Substitute	—	—%	10	Normal	Status
TM91	Flash Cannon	80	100%	10	Steel	Special
TM94	Rock Smash	40	100%	15	Fighting	Physical
HM04	Strength	80	100%	15	Normal	Physical
Bold indicates this Pokémon receives STAB from this move. Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.

TMs and HMs Generation IV
TM/HM	Move	Power	Accuracy	PP	Type	Cat.	Contest Cat.	Appeal
TM05	Roar	—	100%	20	Normal	Status		2 ♥
TM06	Toxic	—	85%	10	Poison	Status		2 ♥
TM10	Hidden Power	—	100%	15	Normal	Special		1 ♥
TM11	Sunny Day	—	—%	5	Fire	Status		2 ♥
TM12	Taunt	—	100%	20	Dark	Status		0 ♥
TM17	Protect	—	—%	10	Normal	Status		0 ♥
TM21	Frustration	—	100%	20	Normal	Physical		2 ♥
TM23	Iron Tail	100	75%	15	Steel	Physical		2 ♥
TM26	Earthquake	100	100%	10	Ground	Physical		2 ♥
TM27	Return	—	100%	20	Normal	Physical		2 ♥
TM28	Dig	80	100%	10	Ground	Physical		1 ♥
TM32	Double Team	—	—%	15	Normal	Status		2 ♥
TM37	Sandstorm	—	—%	10	Rock	Status		2 ♥
TM39	Rock Tomb	50	80%	10	Rock	Physical		2 ♥
TM41	Torment	—	100%	15	Dark	Status		0 ♥
TM42	Facade	70	100%	20	Normal	Physical		2 ♥
TM43	Secret Power	70	100%	20	Normal	Physical		2 ♥
TM44	Rest	—	—%	10	Psychic	Status		0 ♥
TM45	Attract	—	100%	15	Normal	Status		2 ♥
TM58	Endure	—	—%	10	Normal	Status		2 ♥
TM59	Dragon Pulse	90	100%	10	Dragon	Special		2 ♥
TM64	Explosion	250	100%	5	Normal	Physical		0 ♥
TM66	Payback	50	100%	10	Dark	Physical		1 ♥
TM69	Rock Polish	—	—%	20	Rock	Status		2 ♥
TM71	Stone Edge	100	80%	5	Rock	Physical		2 ♥
TM74	Gyro Ball	—	100%	5	Steel	Physical		2 ♥
TM76	Stealth Rock	—	—%	20	Rock	Status		2 ♥
TM77	Psych Up	—	—%	10	Normal	Status		0 ♥
TM78	Captivate	—	100%	20	Normal	Status		2 ♥
TM80	Rock Slide	75	90%	10	Rock	Physical		3 ♥
TM82	Sleep Talk	—	—%	10	Normal	Status		3 ♥
TM83	Natural Gift	—	100%	15	Normal	Physical		2 ♥
TM87	Swagger	—	90%	15	Normal	Status		2 ♥
TM90	Substitute	—	—%	10	Normal	Status		1 ♥
TM91	Flash Cannon	80	100%	10	Steel	Special		2 ♥
HM04	Strength	80	100%	15	Normal	Physical		3 ♥
HM06	Rock Smash	40	100%	15	Fighting	Physical		2 ♥
HM08	Rock Climb	90	85%	20	Normal	Physical		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.

TMs and HMs Generation III
TM/HM	Move	Power	Accuracy	PP	Type	Contest Cat.	Appeal	Jam
TM05	Roar	—	100%	20	Normal		3 ♥	0 ♥
TM06	Toxic	—	85%	10	Poison		3 ♥	0 ♥
TM10	Hidden Power	—	100%	15	Normal		3 ♥	0 ♥
TM11	Sunny Day	—	—%	5	Fire		1 ♥	0 ♥
TM12	Taunt	—	100%	20	Dark		2 ♥	0 ♥
TM17	Protect	—	—%	10	Normal		1 ♥	0 ♥
TM21	Frustration	—	100%	20	Normal		1 ♥	0 ♥
TM23	Iron Tail	100	75%	15	Steel		1 ♥	4 ♥
TM26	Earthquake	100	100%	10	Ground		1 ♥	3 ♥
TM27	Return	—	100%	20	Normal		1 ♥	0 ♥
TM28	Dig	60	100%	10	Ground		1 ♥	0 ♥
TM32	Double Team	—	—%	15	Normal		2 ♥	0 ♥
TM37	Sandstorm	—	—%	10	Rock		3 ♥	0 ♥
TM39	Rock Tomb	50	80%	10	Rock		3 ♥	0 ♥
TM41	Torment	—	100%	15	Dark		2 ♥	0 ♥
TM42	Facade	70	100%	20	Normal		2 ♥	0 ♥
TM43	Secret Power	70	100%	20	Normal		1 ♥	0 ♥
TM44	Rest	—	—%	10	Psychic		2 ♥	0 ♥
TM45	Attract	—	100%	15	Normal		2 ♥	0 ♥
HM04	Strength	80	100%	15	Normal		2 ♥	1 ♥
HM06	Rock Smash	20	100%	15	Fighting		1 ♥	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.

TMs and HMs Generation II
TM/HM	Move	Power	Accuracy	PP	Type
TM02	Headbutt	70	100%	15	Normal
TM03	Curse	—	—%	10	???
TM05	Roar	—	100%	20	Normal
TM06	Toxic	—	85%	10	Poison
TM08	Rock Smash	20	100%	15	Fighting
TM10	Hidden Power	—	100%	15	Normal
TM11	Sunny Day	—	—%	5	Fire
TM13	Snore	40	100%	15	Normal
TM17	Protect	—	—%	10	Normal
TM20	Endure	—	—%	10	Normal
TM21	Frustration	—	100%	20	Normal
TM23	Iron Tail	100	75%	15	Steel
TM26	Earthquake	100	100%	10	Ground
TM27	Return	—	100%	20	Normal
TM28	Dig	60	100%	10	Ground
TM31	Mud-Slap	20	100%	10	Ground
TM32	Double Team	—	—%	15	Normal
TM34	Swagger	—	90%	15	Normal
TM35	Sleep Talk	—	—%	10	Normal
TM37	Sandstorm	—	—%	10	Rock
TM44	Rest	—	—%	10	Psychic
TM45	Attract	—	100%	15	Normal
HM04	Strength	80	100%	15	Normal
Bold indicates this Pokémon receives STAB from this move. Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.

TMs and HMs Generation I
TM/HM	Move	Power	Accuracy	PP	Type
TM06	Toxic	—	85%	10	Poison
TM08	Body Slam	85	100%	15	Normal
TM09	Take Down	90	85%	20	Normal
TM10	Double-Edge	100	100%	15	Normal
TM20	Rage	20	100%	20	Normal
TM26	Earthquake	100	100%	10	Ground
TM27	Fissure	—	30%	5	Ground
TM28	Dig	100	100%	10	Ground
TM31	Mimic	—	—%	10	Normal
TM32	Double Team	—	—%	15	Normal
TM34	Bide	—	—%	10	Normal
TM36	Selfdestruct	130	100%	5	Normal
TM40	Skull Bash	100	100%	15	Normal
TM44	Rest	—	—%	10	Psychic
TM47	Explosion	170	100%	5	Normal
TM48	Rock Slide	75	90%	10	Rock
TM50	Substitute	—	—%	10	Normal
HM04	Strength	80	100%	15	Normal
Bold indicates this Pokémon receives STAB from this move. Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.

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, Roggenrola, 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, Roggenrola, 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		2 ♥	0 ♥
Defense Curl	Geodude, Graveler, Golem	—	—%	40	Normal	Status		2 ♥	0 ♥
Flail	Sudowoodo, Dwebble, Crustle	—	100%	15	Normal	Physical		1 ♥	0 ♥
Heavy Slam	Golem	—	100%	10	Steel	Physical		3 ♥	0 ♥
Rock Blast	Geodude, Graveler, Golem, Nosepass, Probopass, Roggenrola, Boldore, Gigalith, Dwebble, Crustle	25	90%	10	Rock	Physical		1 ♥	0 ♥
Rock Climb	Ferrothorn	90	85%	20	Normal	Physical		3 ♥	0 ♥
Rollout	Geodude, Graveler, Golem, Ferroseed, Ferrothorn	30	90%	20	Rock	Physical		3 ♥	0 ♥
Rototiller *	Dwebble	—	—%	10	Ground	Status		1 ♥	0 ♥
Stealth Rock	Geodude, Graveler, Golem, Onix, Steelix, Roggenrola, Boldore, Gigalith, Dwebble, Crustle	—	—%	20	Rock	Status		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, Roggenrola, 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, Roggenrola, 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		2 ♥
Defense Curl	Geodude, Graveler, Golem	—	—%	40	Normal	Status		2 ♥
Explosion	Geodude, Graveler, Golem	250	100%	5	Normal	Physical		0 ♥
Flail	Sudowoodo	—	100%	15	Normal	Physical		2 ♥
Rock Blast	Geodude, Graveler, Golem	25	80%	10	Rock	Physical		2 ♥
Rock Slide	Sudowoodo, Nosepass, Probopass	75	90%	10	Rock	Physical		3 ♥
Rollout	Geodude, Graveler, Golem	30	90%	20	Rock	Physical		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 III
Move	Father	Power	Accuracy	PP	Type	Contest Category	Appeal	Jam
Block	Sudowoodo, Nosepass	—	—%	5	Normal		2 ♥	0 ♥
Explosion	Geodude, Graveler, Golem	250	100%	5	Normal		8 ♥	0 ♥
Flail	Sudowoodo	—	100%	15	Normal		1 ♥	0 ♥
Rock Slide	Sudowoodo, Nosepass	75	90%	10	Rock		1 ♥	3 ♥
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

Tutoring Generation VII
Move	Power	Accuracy	PP	Type	Category
Bind ^USUM	15	85%	20	Normal	Physical
Block ^USUM	—	—%	5	Normal	Status
Dragon Pulse ^USUM	85	100%	10	Dragon	Special
Earth Power ^USUM	90	100%	10	Ground	Special
Iron Head ^USUM	80	100%	15	Steel	Physical
Iron Tail ^USUM	100	75%	15	Steel	Physical
Snore ^USUM	50	100%	15	Normal	Special
Stealth Rock ^USUM	—	—%	20	Rock	Status
Stomping Tantrum ^USUM	75	100%	10	Ground	Physical
Bold indicates this Pokémon receives STAB from this move. Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.

Tutoring Generation VI
Move	Power	Accuracy	PP	Type	Category	Contest Category	Appeal	Jam
Bind ^ORAS	15	85%	20	Normal	Physical		3 ♥	0 ♥
Block ^ORAS	—	—%	5	Normal	Status		2 ♥	0 ♥
Dragon Pulse ^ORAS	85	100%	10	Dragon	Special		4 ♥	0 ♥
Earth Power ^ORAS	90	100%	10	Ground	Special		4 ♥	0 ♥
Iron Head ^ORAS	80	100%	15	Steel	Physical		4 ♥	0 ♥
Iron Tail ^ORAS	100	75%	15	Steel	Physical		4 ♥	0 ♥
Snore ^ORAS	50	100%	15	Normal	Special		4 ♥	0 ♥
Stealth Rock ^ORAS	—	—%	20	Rock	Status		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.

Tutoring Generation V
Move	Power	Accuracy	PP	Type	Category
Bind ^B2W2	15	85%	20	Normal	Physical
Block ^B2W2	—	—%	5	Normal	Status
Dragon Pulse ^B2W2	90	100%	10	Dragon	Special
Earth Power ^B2W2	90	100%	10	Ground	Special
Iron Head ^B2W2	80	100%	15	Steel	Physical
Iron Tail ^B2W2	100	75%	15	Steel	Physical
Sleep Talk ^B2W2	—	—%	10	Normal	Status
Snore ^B2W2	40	100%	15	Normal	Special
Stealth Rock ^B2W2	—	—%	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.

Tutoring Generation IV
Move	Power	Accuracy	PP	Type	Category	Contest Category	Appeal
AncientPower ^HGSSPt	60	100%	5	Rock	Special		2 ♥
Block ^HGSS	—	—%	5	Normal	Status		2 ♥
Earth Power ^HGSSPt	90	100%	10	Ground	Special		2 ♥
Headbutt ^HGSS	70	100%	15	Normal	Physical		3 ♥
Iron Head ^HGSSPt	80	100%	15	Steel	Physical		2 ♥
Mud-Slap ^HGSSPt	20	100%	10	Ground	Special		3 ♥
Rollout ^HGSSPt	30	90%	20	Rock	Physical		2 ♥
Snore ^HGSSPt	40	100%	15	Normal	Special		3 ♥
Twister ^HGSSPt	40	100%	20	Dragon	Special		3 ♥
Bold indicates this Pokémon receives STAB from this move. Italic indicates an evolved or alternate form of this Pokémon receives STAB from this move.

Tutoring Generation III
Move	Power	Accuracy	PP	Type	Contest Category	Appeal	Jam
Body Slam ^FRLGEXD	85	100%	15	Normal		1 ♥	4 ♥
Double-Edge ^FRLGEXD	120	100%	15	Normal		6 ♥	0 ♥
Endure ^E	—	—%	10	Normal		2 ♥	0 ♥
Explosion ^FRLGE	250	100%	5	Normal		8 ♥	0 ♥
Mimic ^FRLGEXD	—	—%	10	Normal		1 ♥	0 ♥
Mud-Slap ^E	20	100%	10	Ground		2 ♥	1 ♥
Psych Up ^E	—	—%	10	Normal		2 ♥	0 ♥
Rock Slide ^FRLGE	75	90%	10	Rock		1 ♥	3 ♥
Selfdestruct ^XD	200	100%	5	Normal		8 ♥	0 ♥
Sleep Talk ^E	—	—%	10	Normal		3 ♥	0 ♥
Snore ^E	40	100%	15	Normal		4 ♥	0 ♥
Substitute ^FRLGEXD	—	—%	10	Normal		2 ♥	0 ♥
Swagger ^EXD	—	90%	15	Normal		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.

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

Main articles: Brock's Steelix and Onix (TB089)

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."

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