Pokémon#095

Onix

Type: Rock / Ground • Also known asRock Snake Pokémon

Generation 1

Description

As it grows, the stone portions of its body harden to become similar to a diamond, but colored black.

TCG Cards

View all Onix trading cards and their competitive usage.

View Onix TCG Cards →

Base Stats

Attack

Defense

160

Sp. Atk

Sp. Def

Speed

Total

385

Stat Ranges

Min (0 IV / 0 EV / 0.9 nature) and Max (31 IV / 252 EV / 1.1 nature).

Stat	Lv 50 Min	Lv 100 Min	Lv 50 Max	Lv 100 Max
HP	95	180	142	274
Attack	45	85	106	207
Defense	148	292	233	460
Sp. Atk	31	58	90	174
Sp. Def	45	85	106	207
Speed	67	130	134	262

Min/Max use the standard Gen III+ stat formula. HP for Shedinja is capped at 1 in-game regardless.

Weak to

Water

Grass

Fighting

Resists

Poison

Normal

Flying

Species Identity

Core species facts, alternate varieties, and Pokédex placements at a glance.

Generation

Generation 1

Habitat

Cave

Color

Gray

Shape

Squiggle

Gender Difference

Forms Switchable

Regional Pokédex Numbers

National	#95
Conquest Gallery	#175
Extended Sinnoh	#34
Galar	#178
Hisui	#118
Kalos Coastal	#53
Kanto	#95
Letsgo Kanto	#95
Lumiose City	#197
Original Johto	#62
Original Sinnoh	#34
Updated Johto	#62
Updated Unova	#71

Training Profile

Battle-ready training facts pulled from EV yield, growth curve, and wild held item data.

Base Experience

EV Yield

+1 Defense

Growth Curve

Medium Fast

x³

Exp at Lv. 50

125,000

Exp at Lv. 100

1,000,000

Wild Held Items

Hard Stone

Max rarity: 5%

Versions: Firered, Leafgreen

Evolution Chain

#095

Onix

→

Trade, Hold Metal Coat

#208

Steelix

Encounter Guide

Where this Pokémon appears in supported games, including method, level range, and encounter conditions.

Let’s Go, Pikachu!

6 spots

100% max

Victory Road 1 (1F)

100%

Method: Walking in the overworld
Level Range: Lv. 41-46
Conditions: Any

Victory Road 1 (2F)

100%

Method: Walking in the overworld
Level Range: Lv. 41-46
Conditions: Any

Victory Road 1 (3F)

100%

Method: Walking in the overworld
Level Range: Lv. 41-46
Conditions: Any

Mount Moon (1F)

100%

Method: Walking in the overworld
Level Range: Lv. 5-10
Conditions: Any

Mount Moon (B1F)

100%

Method: Walking in the overworld
Level Range: Lv. 5-10
Conditions: Any

Mount Moon (B2F)

100%

Method: Walking in the overworld
Level Range: Lv. 5-10
Conditions: Any

Let’s Go, Eevee!

6 spots

100% max

Victory Road 1 (1F)

100%

Method: Walking in the overworld
Level Range: Lv. 41-46
Conditions: Any

Victory Road 1 (2F)

100%

Method: Walking in the overworld
Level Range: Lv. 41-46
Conditions: Any

Victory Road 1 (3F)

100%

Method: Walking in the overworld
Level Range: Lv. 41-46
Conditions: Any

Mount Moon (1F)

100%

Method: Walking in the overworld
Level Range: Lv. 5-10
Conditions: Any

Mount Moon (B1F)

100%

Method: Walking in the overworld
Level Range: Lv. 5-10
Conditions: Any

Mount Moon (B2F)

100%

Method: Walking in the overworld
Level Range: Lv. 5-10
Conditions: Any

Type Matchups

Understanding damage taken from different types is crucial for battles. Plan your team accordingly!

Weaknesses

4× Weakness

4×

Takes 4× damage from these types - extremely vulnerable!

Water

4×

Grass

4×

2× Weakness

2×

Takes double damage from these types - watch out!

Resistances

¼× Resistance

¼×

Takes quarter damage from these types - excellent defense!

Poison

0.25×

½× Resistance

½×

Takes half damage from these types - good defense!

0.5×

0.5×

0.5×

0.5×

Immunities

0×

Completely immune to these types - no damage taken!

Electric

Tip: Build your team with Pokémon that cover each other's weaknesses!

Full Type Defense Chart

Damage multipliers from all 18 attacking types

½×

2×

½×

¼×

2×

½×

1×

1×

2×

½×

4×

4×

0×

1×

2×

1×

1×

1×

Battle Profile

Offensive Coverage

Super effective against these types with STAB moves

Strategic Insight

Onix's rock/ground typing gives it 6 weaknesses but strong offensive coverage against flying, bug, fire, ice, poison, rock, steel, electric types

Move Insights

High-signal moves surfaced from learnsets and move metadata, grouped by battle purpose.

Best STAB Options

Reliable same-type attacks that match this Pokémon's typing.

Stone Edge

Learned at Lv. 62

Black White

Rock

Power: 100Accuracy: 80PP: 5Physical

Has an increased chance for a critical hit.

Dig

Learned at Lv. 44

Sword Shield

Ground

Power: 80Accuracy: 100PP: 10Physical

User digs underground, dodging all attacks, and hits next turn.

Ancient Power

Tutor Moves

Platinum

Rock

Power: 60Accuracy: 100PP: 5Special

Has a chance to raise all of the user’s stats by one stage.

Coverage Picks

Off-type attacks that expand what this Pokémon can threaten.

Double-Edge

Learned at Lv. 57

Normal

Power: 120Accuracy: 100PP: 15Physical

User receives 1/3 the damage inflicted in recoil.

Iron Tail

Learned at Lv. 49

Black White

Steel

Power: 100Accuracy: 75PP: 15Physical

Has a chance to lower the target’s Defense by one stage.

Body Slam

TM/TR Moves

Yellow

Normal

Power: 85Accuracy: 100PP: 15PhysicalParalysis

Has a chance to paralyze the target.

Utility & Status

Support, disruption, and setup tools worth noticing.

Sand Tomb

Learned at Lv. 54

Black White

Ground

Power: 35Accuracy: 85PP: 15PhysicalTrap

Prevents the target from fleeing and inflicts damage for 2-5 turns.

Attract

TM/TR Moves

Normal

Accuracy: 100PP: 15StatusInfatuation

Target falls in love if it has the opposite gender, and has a 50% chance to refuse attacking the user.

Body Slam

TM/TR Moves

Yellow

Normal

Power: 85Accuracy: 100PP: 15PhysicalParalysis

Has a chance to paralyze the target.

Defense Curl

Egg Moves

X Y

Normal

PP: 40Status

Raises user’s Defense by one stage.

Related Guides & News

Guide

Evolution Strategies →

Guide

Stats & IVs Guide →

Related Pokémon

Reference Data

Names in Other Languages

English	Onix
Japanese	イワーク
Japanese (Kanji)	イワーク
Roomaji	Iwark
Korean	롱스톤
French	Onix
German	Onix
Spanish	Onix
Italian	Onix
Chinese (Traditional)	大岩蛇
Chinese (Simplified)	大岩蛇

Sprite Gallery

Red Blue

Yellow

Pokédex Data

Height

8.8 m

Weight

210.0 kg

Type

Rock

Ground

Abilities

Protects against recoil damage.

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

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

Breeding Information

🥚

Egg Groups

Mineral

⚧

Gender Ratio

♂

50%

♀

50%

🐣

Hatch Steps

6,375

Hatch Counter: 25

⚪

Capture Rate

Higher values mean easier to catch

❤️

Base Happiness

Initial friendship level

📈

Growth Rate

Medium Fast

Experience points needed to level up

Move Name

Bind

bind

Lv. 15

Harden

harden

Lv. 43

Mud Sport

mud-sport

Lv. 1

Rock Throw

rock-throw

Lv. 19

Rollout

rollout

Lv. 1

Screech

screech

Lv. 31

Tackle

tackle

Lv. 6

Curse

curse

Lv. 46

Smack Down

smack-down

Lv. 22

Stealth Rock

stealth-rock

Lv. 38

Rock Polish

rock-polish

Lv. 30

Rage

rage

Lv. 27

Rock Tomb

rock-tomb

Lv. 17

Bulldoze

bulldoze

Lv. 11

Dragon Breath

dragon-breath

Lv. 41

Rock Slide

rock-slide

Lv. 34

Dig

dig

Lv. 44

Gyro Ball

gyro-ball

Lv. 20

Sandstorm

sandstorm

Lv. 52

Slam

slam

Lv. 41

Sand Tomb

sand-tomb

Lv. 54

High Horsepower

high-horsepower

Lv. 34

Earthquake

earthquake

Lv. 35

Iron Tail

iron-tail

Lv. 49

Double Edge

double-edge

Lv. 57

Stone Edge

stone-edge

Lv. 62

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