#0095Generation I

Onix

rockground

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

Height

8.8m

Weight

210kg

Catch Rate

45/255Hard

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How to Evolve Onix in Cobblemon

View Full Evolution Guide

Onix

RockGround

Steelix

SteelGround

To evolve Onix into Steelix in Cobblemon, meet these requirements: Must be traded · Must be holding metal coat.

Method: trade

Learnable moves: None

Consumes held item: Yes

Requirements:

Must be holding metal coat

Base Stats & EV Yield

Attack

Defence

160

Sp. Atk

Sp. Def

Speed

EV Yield1Defence

Generic Info

Height: 8.8m
Weight: 210kg
Catch Rate: 45/255Hard
Base Friendship: 50
Experience Group: medium_fast
Base Experience: 77
Hitbox: 2w x 4h - Fixed: No
Status: Implemented

Abilities

#1: rockhead
#2: sturdy
#3: weakarmorHidden

Drops

Onix can drop Stone, Hard Stone, and Lagging Tail and 1 more item. The table uses 6 drop rolls; percentages are per roll, not guaranteed drops. Quantity ranges show the possible item count for that entry.

Base drops
Amount: 6
#1: Stone1-3
#2: Hard Stone2.5%
#3: Lagging Tail2.5%
#4: Passho Berry2.5%

Breeding

Egg Groups: Mineral
Egg Cycles: 25
Gender Ratio: 50.0% M / 50.0% F

Riding

Onix is rideable and has land horse riding behaviour.

Riding Stats

Acceleration (0)1

Acceleration (1)5

Acceleration (2)-

Acceleration (3)3

Acceleration (4)0

Jump (0)5

Jump (1)-

Jump (2)1

Jump (3)0

Skill (0)2

Skill (1)5

Skill (2)-

Skill (3)5

Skill (4)0

Speed (0)2

Speed (1)0

Speed (2)-

Speed (3)4

Speed (4)0

Stamina (0)2

Stamina (1)5

Stamina (2)-

Stamina (3)5

Stamina (4)0

Riding Behaviour

Typeland/horse

Behavior

Movement
Walk Speed: 0.3
Can Swim in Lava: Yes
Avoids Water: Yes
Fire Immunity
Fire Immunity: Yes
Herd
Max Size: 2
Tolerated Leaders: Onix AlphaTier 1Steelix AlphaTier 1
Combat
Will Defend Self: Yes
Will Defend Owner: Yes
Will Flee: No
Resting
Can Sleep: Yes
Times: any
Light Requirement: 0-4
Drowsy Chance: 0.0014
Rouse Chance: 0.0042

Where does Onix spawn in Cobblemon?

Onix has 2 natural spawn entries in the current Cobblemon data. It can appear from level 14 to 39. Listed biome tags include overworld-tagged biomes, nether basalt-tagged biomes. Some entries also require specific skylight levels.

Plan a hunt View Spawn Data

Habitat encounters

Onix is not currently listed in a habitat pool.

What moves does Onix learn?

130

Onix has 130 listed moves: 39 level-up, 60 TM, 8 egg, 23 tutor.

Dragon BreathLevel Up

Stomping TantrumTutor

As an Alpha

Full Alpha guide

What Onix becomes as a Cobblemon 1.8 Alpha

Size

≈ ×1.15 normal adult size

Marks

alphajumbo

Level vs your party

Set your strongest Pokémon's level: 50 → Lv 66

Matches the nearest player within 32 blocks. This form’s evolution floor is Lv 1; an empty party does not change its level.

Alpha moveset

Slots 3 & 4 prefer eligible TM moves, falling back to level-up moves. Up to two TM moves replace normal slots; moves already available by level are excluded.

Drops if defeated

Extra rewards when a wild Alpha is defeated in battle, in addition to its normal drops. Base rewards depend on its final level.

Chances are per defeat (at least one drop); quantities are per successful roll. Repeated rolls can add more items.