Accent Image to accompany hero

Onixin Pokémon Polished Crystal

rockground

Pokédex Entry

Rock Snake Pokémon

As it digs through the ground, it absorbs many hard objects. This is what makes its body so solid.

Onix in Pokémon Polished Crystal

Onix is #95 in the Pokédex for Pokémon Polished Crystal. This page covers its rock/ground typing, base stats, abilities, level-up and TM/HM moves, evolution chain, and where to find it across 40 encounter locations.

Type
RockGround
Dex
#067 Johto Dex · #095 National
Abilities
Rock Head(Primary)

Protects it from recoil damage.

Sturdy(Secondary)

Cannot be knocked out with one hit.

Weak Armor(Hidden)

Physical attacks trade Def for Spe.

Growth Rate
Medium Fast
Gender Ratio
50% Male, 50% Female
Egg Groups
mineral
Hatch Rate
Medium Slow (25 cycles)
Catch Rate
45
pokeball
Poké Ball5.3%
greatball
Great Ball7.5%
ultraball
Ultra Ball8.9%
Base Exp
128
EV Yield
1 Defense
Weak To
water ×4grass ×4ice ×2fighting ×2ground ×2steel ×2
Resists
normal ×0.5fire ×0.5poison ×0.25flying ×0.5rock ×0.5
Immune To
electric

Evolution Chain

Note, you can always call Professor Elm with the Pokemon you are trying to evolve as first in your party. This was a feature that was added specifically to Polished Crystal. If the information on this page seems incorrect, please try calling Professor Elm.


Base form
Level up Onix holding Metal Coat

How to Obtain

Onix can be found common in Silver Cave Room3 in the morning and day-time, in Rock Tunnel B1F (uncommon), and in Silver Cave Room1 (uncommon), among 12 other areas. Wild ones range from level eight to 76, unless in a badge-dependent area.

Wild Encounters (20)

Level Up Moves (20)

TackleLevel: 1normal
4010035
A full-body charge attack.
Defense CurlLevel: 1normal
010040
Raises the user's Defense.
WrapLevel: 1normal
159020
Traps the foe for 2-5 turns.
CurseLevel: 4ghost
010010
Works differently for Ghost-types.
Rock ThrowLevel: 7rock
509015
Drops rocks on the enemy.
RageLevel: 10normal
2010020
Raises Attack if the user is hit.
Rock BlastLevel: 13rock
259025
Hurls boulders to hit 2-5 times.
Body SlamLevel: 16normal
8510015
An attack that may cause paralysis.
SandstormLevel: 19rock
010010
Inflicts damage every turn.
AncientpowerLevel: 22rock
601005
An attack that may raise all stats.
DragonbreathLevel: 25dragon
6010020
A strong breath attack.
HeadbuttLevel: 28normal
7010015
An attack that may cause flinching.
ScreechLevel: 31normal
08540
Sharply lowers the foe's Defense.
Rock SlideLevel: 34rock
759010
An attack that may cause flinching.
CrunchLevel: 37dark
8010015
An attack that may lower Defense.
Iron TailLevel: 40steel
1007515
An attack that may lower Defense.
DigLevel: 43ground
9010010
1st turn: Burrow 2nd turn: Attack
Stone EdgeLevel: 46rock
100805
Has a high critical hit ratio.
Double EdgeLevel: 49normal
12010015
A tackle that also hurts the user.
EarthquakeLevel: 52ground
10010010
Tough but useless vs. flying foes.

Egg Moves (4)

Defense Curlnormal
010040
Raises the user's Defense.
Rock Sliderock
759010
An attack that may cause flinching.
Earthquakeground
10010010
Tough but useless vs. flying foes.
Rock Blastrock
259025
Hurls boulders to hit 2-5 times.

TM/HM Moves (25)

Curseghost
010010TM03
Works differently for Ghost-types.
Roarnormal
010020TM05
Scares wild foes to end battle.
Toxicpoison
09010TM06
A Poison move with increasing damage.
Hidden Powertypeless
7010015TM10
The type varies with the Pokémon.
Sunny Dayfire
01005TM11
Boosts Fire-type moves for 5 turns.
Protectnormal
010010TM17
Foils attack that turn. It may fail.
Bulldozeground
6010020TM21
A Ground attack that lowers Speed.
Iron Tailsteel
1007515TM23
An attack that may lower Defense.
Earthquakeground
10010010TM26
Tough but useless vs. flying foes.
Returnnormal
110020TM27
An attack that is based on loyalty.
Digground
9010010TM28
1st turn: Burrow 2nd turn: Attack
Brick Breakfighting
7510015TM31
Removes Reflect and Light Screen.
Double Teamnormal
010015TM32
Raises the user's evasiveness.
Flash Cannonsteel
8010010TM34
An attack that may lower Sp.Def.
Sandstormrock
010010TM37
Inflicts damage every turn.
Substitutenormal
010010TM41
Makes a decoy with 1/4 user's max HP.
Facadenormal
7010020TM42
Double damage with Psn, Brn, or Prz.
Restpsychic
01005TM44
Sleep for 2 turns to fully recover.
Attractnormal
010015TM45
Makes the opposite gender infatuated.
Rock Sliderock
759010TM48
An attack that may cause flinching.
Dragon Pulsedragon
8510010TM59
Attacks foe with a shock wave.
Explosionnormal
2501005TM64
Very powerful but makes user faint.
Stone Edgerock
100805TM71
Has a high critical hit ratio.
Gyro Ballsteel
11005TM74
Does more damage at lower speed.
Strengthfighting
8010015HM04
A powerful physical attack.

Move Tutor Moves (9)

Body Slam(Warm Beach Shack)normal
8510015Tutor
An attack that may cause paralysis.
Double Edge(Safari Zone North)normal
12010015Tutor
A tackle that also hurts the user.
Earth Power(Cherrygrove Bay)ground
9010010Tutor
An attack that may lower Sp.Def.
Endure(Warm Beach Shack)normal
010010Tutor
Endures any hit with at least 1HP.
Headbutt(Ilex Forest)normal
7010015Tutor
An attack that may cause flinching.
Iron Head(Route 4)steel
8010015Tutor
An attack that may cause flinching.
Rollout(Route 46)rock
309020Tutor
Attacks 5 turns with rising power.
Sleep Talk(Route 31)normal
010010Tutor
Randomly attacks while asleep.
Swagger(Celadon City)normal
08515Tutor
Causes confusion but raises Attack.

Type Summary

6
Weaknesses
5
Resistances
1
Immunities
6
Neutral

Weaknesses

Types that deal increased damage to Onix. Use these types to counter it effectively.

Resistances & Immunities

Types that Onix resists or is immune to. Avoid using these types against it.

Immunities (0×)

Also in

This Pokémon appears in other games we cover. Typing and base stats shown are that game's own — differences from the game you're viewing are marked.

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