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National No. 95

Onix

Rock Snake Pokémon

Stone
Terrestrial
Generation I
8.8 m Size
210 kg Weight
3 Abilities
#0095
Onix

Description

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.

Abilities

Ability 1

Rock Head

Protects against recoil damage.

Ability 2

Sturdy

Prevents being KOed from full HP, leaving 1 HP instead. Protects against the one-hit KO moves regardless of HP.

Hidden Ability

Weak Armor

Raises Speed and lowers Defense by one stage each upon being hit by a physical move.

Technical Specs

Physical Characteristics
Size 8.8 m / 28'87"
Weight 210 kg / 462.97 lbs
Color Gray
Body
Squiggle Pokémon with serpentine bodies
Habitat
cave
Training & Growth
Base happiness 70
Base experience 77
Maximum Experience 1.000.000
Experience Rated as medium
Breeding & Reproduction
Egg Groups Mineral
Base Egg Cycle 25
Steps to Hatch Egg hatches with 6400 Steps
Gender / Breeding Male: 50% / Female: 50%
Catch Rates
Base Catch Rate 45
Catch Chances
Poké Ball Poké Ball

has a 11.9% capture chance

Great Ball Great Ball

has a 16.2% capture chance

Ultra Ball Ultra Ball

has a 20.1% capture chance

Calculation for the most recent games, assuming the Pokémon has 100% HP, no status condition, and no critical capture.

Form and origin
Origin Generation I / Kanto
Available since Red / Green (Japan) · Generation I
Form Onix
Form type Default form
Names in other languages

Official names and readings used across the games' different localizations.

English Onix
French Onix
German Onix
Spanish Onix
Italian Onix
Japanese イワーク Iwark
Korean 롱스톤 Rongston
Chinese 大岩蛇 Daaihngàahmsèh · Dàyánshé

History across games

See only information that changed between generations and mechanics from classic games.

Latest official description

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.

31 descriptions 2 historical periods Classic game data

Held Items (Wild Drops)

These items have a chance of being found with this Pokémon in the wild:

Hard Stone
Hard Stone
5% · FireRed, LeafGreen

Evolutionary Chain

Onix
Onix
Nº095
Steelix
Steelix
Nº208 Onix · Trade with equipped Metal Coat item
Mega Steelix
Mega Steelix
Nº208 Steelixite

Breeding Compatibility ("Breeds With")

These Pokémon share the same egg group and can breed with the selected one:

Bases from Onix

Status
Base
EVs
Progress
Lv 50 (Min - Max)
Lv 100 (Min - Max)
Life
35
-
95 - 142
180 - 274
Attack
45
-
45 - 106
85 - 207
Defense
160
+1 EV
148 - 233
292 - 460
Sp Attack.
30
-
31 - 90
58 - 174
Defense Esp.
45
-
45 - 106
85 - 207
Speed
70
-
67 - 134
130 - 262
Total
385
+1 EV
-
-
Life
35
Lv 50: 95 - 142 Lv 100: 180 - 274
At.
45
Lv 50: 45 - 106 Lv 100: 85 - 207
Df. +1 EV
160
Lv 50: 148 - 233 Lv 100: 292 - 460
At. Esp.
30
Lv 50: 31 - 90 Lv 100: 58 - 174
Df. Esp.
45
Lv 50: 45 - 106 Lv 100: 85 - 207
Vel.
70
Lv 50: 67 - 134 Lv 100: 130 - 262
Total +1 EV
385

Values calculated for the most recent games. The minimum assumes 0 IVs, 0 EVs, and a hindering Nature; the maximum assumes 31 IVs, 252 EVs, and a beneficial Nature. HP is not affected by Nature. The EVs column shows the species' EV yield.

Moves

Tackle No.33 · Level up
Type Normal
Class Physical Moves
Learning
Level 6 Mastery 15
Latest record
PP 35
Attack 40
Hit 100%
Screech No.103 · Level up
Type Normal
Class Status Moves
Learning
Level 24
Latest record
PP 40
Attack -
Hit 85%
Bind No.20 · Level up
Type Normal
Class Physical Moves
Learning
Level 1
Latest record
PP 20
Attack 15
Hit 85%
Rock Throw No.88 · Level up
Type Stone
Class Physical Moves
Learning
Level 1
Latest record
PP 15
Attack 50
Hit 90%
Rage No.99 · Level up
Type Normal
Class Physical Moves
Learning
Level 10
Latest record
PP 20
Attack 20
Hit 100%
Slam No.21 · Level up
Type Normal
Class Physical Moves
Learning
Level 36
Latest record
PP 20
Attack 80
Hit 75%
Harden No.106 · Level up
Type Normal
Class Status Moves
Learning
Level 1
Latest record
PP 30
Attack -
Hit -
Sandstorm No.201 · Level up
Type Stone
Class Status Moves
Learning
Level 40
Latest record
PP 10
Attack -
Hit -
Iron Tail No.231 · Level up
Type Metallic
Class Physical Moves
Learning
Level 43 Mastery 54
Latest record
PP 15
Attack 100
Hit 75%
Sand Tomb No.328 · Level up
Type Terrestrial
Class Physical Moves
Learning
Level 28
Latest record
PP 15
Attack 35
Hit 85%
Double-Edge No.38 · Level up
Type Normal
Class Physical Moves
Learning
Level 56
Latest record
PP 15
Attack 120
Hit 100%
Dragon Breath No.225 · Level up
Type Dragon
Class Special Moves
Learning
Level 12
Latest record
PP 20
Attack 60
Hit 100%
Mud Sport No.300 · Level up
Type Terrestrial
Class Status Moves
Learning
Level 1
PP 15
Attack -
Hit -
Rock Tomb No.317 · Level up
Type Stone
Class Physical Moves
Learning
Level 10
Latest record
PP 15
Attack 60
Hit 95%
Rock Polish No.397 · Level up
Type Stone
Class Status Moves
Learning
Level 8
Latest record
PP 20
Attack -
Hit -
Stone Edge No.444 · Level up
Type Stone
Class Physical Moves
Learning
Level 52
Latest record
PP 5
Attack 100
Hit 80%
Curse No.174 · Level up
Type Ghost
Class Status Moves
Learning
Level 16
Latest record
PP 10
Attack -
Hit -
Smack Down No.479 · Level up
Type Stone
Class Physical Moves
Learning
Level 4
Latest record
PP 15
Attack 50
Hit 100%
Stealth Rock No.446 · Level up
Type Stone
Class Status Moves
Learning
Level 25 Mastery 35
Latest record
PP 20
Attack -
Hit -
Rock Slide No.157 · Level up
Type Stone
Class Physical Moves
Learning
Level 18 Mastery 28
Latest record
PP 10
Attack 75
Hit 90%
Dig No.91 · Level up
Type Terrestrial
Class Physical Moves
Learning
Level 44
Latest record
PP 10
Attack 80
Hit 100%
Gyro Ball No.360 · Level up
Type Metallic
Class Physical Moves
Learning
Level 20
PP 5
Attack -
Hit 100%
Earthquake No.89 · Level up
Type Terrestrial
Class Physical Moves
Learning
Level 35
PP 10
Attack 100
Hit 100%
Rollout No.205 · Level up
Type Stone
Class Physical Moves
Learning
Level 1 Mastery 10
PP 20
Attack 30
Hit 90%
Bulldoze No.523 · Level up
Type Terrestrial
Class Physical Moves
Learning
Level 11 Mastery 20
PP 20
Attack 60
Hit 100%
High Horsepower No.667 · Level up
Type Terrestrial
Class Physical Moves
Learning
Level 34 Mastery 45
PP 10
Attack 95
Hit 95%