Elite Redux LeafGreen
#95

Onix

The Rock Snake Pokémon

Rock Ground

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.

Base stat total
385
Height
8.8 m
Weight
210 kg
Catch rate
45

Base stats

385 total
HP 35 211 274
Atk 45 113 207
Def 160 320 460
SpA 30 86 174
SpD 45 113 207
Spe 70 158 262

At level 100, from no EVs and a hindering nature to 252 EVs and a beneficial one. Every Pokémon here has perfect IVs, so they are not part of the spread — except Speed, which the Iron Pill can drop to zero.

Type matchups

defending
Takes more
Water 4× Grass 4× Fighting 2× Ground 2× Steel 2× Ice 2×
Takes less
Poison ¼× Normal ½× Flying ½× Rock ½× Fire ½×
No effect
Electric 0×

The other 6 types deal normal damage. Full chart

Takes more
Water 3× Grass 3× Fighting 1.5× Ground 1.5× Steel 1.5× Ice 1.5×
Takes less
Poison ¼× Normal ½× Flying ½× Rock ½× Fire ½×
No effect
Electric 0×

The other 6 types deal normal damage. Full chart

  • Solid Rock always on ×0.75 on super-effective hits

Abilities

3 selectable · 3 innate
Main choose one, switch any time Rock Head Prevents recoil damage. Stamina Hits raise Defense; critical hits maximize it. Sand Stream Summons a sandstorm.
Innate always active, all of them Sturdy Negates 1-hit KO attacks. Rough Skin Hurts to touch. Solid Rock Weakens “supereffective”.

Evolution line

Onix Onix BST 385
Steelix Steelix BST 510 Level · 38

Changed from vanilla

Main abilities kept Rock Head new Stamina Sand Stream now innate Sturdy removed Weak Armor
Innates added Rough SkinSolid Rock

Details

Height
8.8 m
Weight
210 kg
Gender
50% male · 50% female
Egg groups
Mineral
Egg cycles
25
Catch rate
45
Base exp
77
Growth rate
Medium Fast
EV yield
1 Def
Base friendship
50
Wild held item
—
Colour
Gray

Moves

6 level-up · 10 egg · 90 teachable
LvMoveTypeCatPwrAccPP
1 Tackle Normal Physical 40 100 35
Screech Normal Status — 85 40
15 Bind Normal Physical 35 100 20
19 Rock Throw Rock Physical 50 90 15
25 Rage Fighting Physical 120 100 5
33 Slam Normal Physical 95 100 20
43 Harden Normal Status — ∞ 30
MoveTypeCatPwrAccPP
Flail Normal Physical 1 100 15
Block Normal Status — ∞ 5
Defense Curl Normal Status — ∞ 40
Rollout Rock Physical 40 100 20
Rock Blast Rock Physical 25 90 10
Rock Climb Rock Physical 90 95 20
Heavy Slam Steel Physical 1 100 10
Stealth Rock Rock Status — ∞ 20
Rototiller Ground Status — ∞ 10
Wide Guard Rock Status — ∞ 10
MoveTypeCatPwrAccPP
Ancient Power Rock Special 60 100 5
Attract Normal Status — 90 15
Bide Normal Physical 1 ∞ 10
Bind Normal Physical 35 100 20
Block Normal Status — ∞ 5
Body Press Fighting Physical 80 100 10
Body Slam Normal Physical 85 100 15
Breaking Swipe Dragon Physical 60 100 15
Brutal Swing Dark Physical 60 100 20
Bulldoze Ground Physical 60 100 20
Captivate Fairy Special 65 100 20
Confide Normal Status — ∞ 20
Curse Ghost Status — ∞ 10
Defense Curl Normal Status — ∞ 40
Dig Ground Physical 80 100 10
Double-Edge Normal Physical 120 100 15
Double Team Normal Status — ∞ 15
Dragon Breath Dragon Special 60 100 20
Dragon Dance Dragon Status — ∞ 20
Dragon Pulse Dragon Special 85 100 10
Dragon Tail Dragon Physical 60 90 10
Drill Run Ground Physical 80 95 10
Earthquake Ground Physical 100 100 10
Earth Power Ground Special 90 100 10
Endure Normal Status — ∞ 10
Explosion Normal Physical 250 100 5
Facade Normal Physical 70 100 20
Fissure Ground Physical 1 30 5
Flail Normal Physical 1 100 15
Flash Cannon Steel Special 80 100 10
Frustration Dark Physical 75 100 10
Gyro Ball Steel Physical 1 100 5
Harden Normal Status — ∞ 30
Headbutt Normal Physical 70 100 15
Head Smash Rock Physical 150 80 5
Heavy Slam Steel Physical 1 100 10
Hidden Power Normal Special 60 100 15
High Horsepower Ground Physical 95 95 10
Iron Head Steel Physical 80 100 15
Iron Tail Steel Physical 90 100 10
Meteor Beam Rock Special 120 90 10
Mimic Normal Status — ∞ 10
Mud-Slap Ground Special 20 100 10
Mud Sport Ground Status — ∞ 15
Natural Gift Normal Physical 1 100 15
Nature Power Normal Status 1 ∞ 20
Payback Dark Physical 50 100 10
Power Shift Normal Status — ∞ 10
Protect Normal Status — ∞ 10
Psych Up Normal Status — ∞ 10
Rage Fighting Physical 120 100 5
Rest Psychic Status — ∞ 5
Return Normal Physical 102 100 20
Roar Normal Status — ∞ 20
Rock Blast Rock Physical 25 90 10
Rock Climb Rock Physical 90 95 20
Rock Polish Rock Status — ∞ 20
Rock Slide Rock Physical 75 90 10
Rock Smash Fighting Physical 60 100 15
Rock Throw Rock Physical 50 90 15
Rock Tomb Rock Physical 60 95 15
Rollout Rock Physical 40 100 20
Rototiller Ground Status — ∞ 10
Round Normal Special 60 100 15
Sandstorm Rock Status — ∞ 10
Sand Tomb Ground Physical 50 90 10
Scary Face Normal Status — 100 10
Scorching Sands Ground Special 70 100 10
Screech Normal Status — 85 40
Secret Power Normal Physical 70 100 20
Self-Destruct Normal Physical 200 100 5
Skull Bash Normal Physical 130 100 10
Slam Normal Physical 95 100 20
Sleep Talk Normal Status — ∞ 10
Smack Down Rock Physical 50 100 15
Snore Normal Special 85 100 15
Stealth Rock Rock Status — ∞ 20
Stomping Tantrum Ground Physical 75 100 10
Stone Edge Rock Physical 100 80 5
Strength Normal Physical 80 100 15
Substitute Normal Status — ∞ 10
Sunny Day Fire Status — ∞ 5
Swagger Normal Status — 85 15
Tackle Normal Physical 40 100 35
Take Down Normal Physical 90 85 20
Taunt Dark Status — 100 20
Torment Dark Status — 100 15
Toxic Poison Status — 90 10
Twister Dragon Special 40 100 20
Wide Guard Rock Status — ∞ 10

Where to find it

1 method
Walking in grass