Onix
#95 in the Kanto Pokédex • Rock Snake Pokémon
Onix in the National Pokédex
Pokédex entries
FireRed
It usually lives underground. It searches for food while boring its way through the ground at 50 miles per hour.
LeafGreen
As it grows, the stone portions of its body harden to become similar to black-colored diamonds.
Pokémon details
Onix in Other Games
National Dex pageMin
Max
HP
35
180
274
Attack
45
85
207
Defense
160
292
460
Sp. Atk
30
58
174
Sp. Def
45
85
207
Speed
70
130
262
Total
385
Ranges are for Level 100. Max assumes a beneficial nature, 252 EVs, and 31 IVs; min assumes a hindering nature, 0 EVs, and 0 IVs.
Game availability
Available within the FireRed/LeafGreen pair. Depending on the species, acquisition can require the other version, the postgame, evolution, breeding, or an event ticket. Original GBA event tickets required historical distributions; Switch ticket access differs.
| EV yield | 1 Def |
|---|---|
| Catch rate | 45 |
| Base Exp. | 108 |
| Egg groups | |
|---|---|
| Gender | 50% male 50% female |
| Egg cycles | 25 (6,655 steps) |
| Pokémon | Requires | Evolution |
|---|---|---|
 Onix #95 |  Trade holding Metal CoatRequires the National Pokédex. |  Steelix #208 |
Wild encounter
Encountered in Rock Tunnel and Victory Road, and in Sevault Canyon in the Sevii Islands in the post-game.
Rock Tunnel, Sevault Canyon, Victory Road
| Class | ||||||
|---|---|---|---|---|---|---|
| Start | Tackle |  |  | 35 | 95 | 35 |
| Start | Screech | |  | - | 85 | 40 |
| 8 | Bind | | | 15 | 75 | 20 |
| 12 | Rock Throw |  | | 50 | 90 | 15 |
| 19 | Harden | | | - | - | 30 |
| 23 | Rage | | | 20 | 100 | 20 |
| 30 | Dragon Breath |  |  | 60 | 100 | 20 |
| 34 | Sandstorm | | | - | - | 10 |
| 41 | Slam | | | 80 | 75 | 20 |
| 45 | Iron Tail |  | | 100 | 75 | 15 |
| 52 | Sand Tomb |  | | 15 | 70 | 15 |
| 56 | Double-Edge | | | 120 | 100 | 15 |
| Class | ||||||
|---|---|---|---|---|---|---|
| TM05 | Roar | | | - | 100 | 20 |
| TM06 | Toxic |  | | - | 85 | 10 |
| TM10 | Hidden Power | | | - | 100 | 15 |
| TM11 | Sunny Day |  | | - | - | 5 |
| TM12 | Taunt |  | | - | 100 | 20 |
| TM17 | Protect | | | - | - | 10 |
| TM21 | Frustration | | | - | 100 | 20 |
| TM23 | Iron Tail | | | 100 | 75 | 15 |
| TM26 | Earthquake | | | 100 | 100 | 10 |
| TM27 | Return | | | - | 100 | 20 |
| TM28 | Dig | | | 60 | 100 | 10 |
| TM32 | Double Team | | | - | - | 15 |
| TM37 | Sandstorm | | | - | - | 10 |
| TM39 | Rock Tomb | | | 50 | 80 | 10 |
| TM41 | Torment | | | - | 100 | 15 |
| TM42 | Facade | | | 70 | 100 | 20 |
| TM43 | Secret Power | | | 70 | 100 | 20 |
| TM44 | Rest |  | | - | - | 10 |
| TM45 | Attract | | | - | 100 | 15 |
| HM04 | Strength | | | 80 | 100 | 15 |
| HM06 | Rock Smash |  | | 20 | 100 | 15 |
| Class | |||||
|---|---|---|---|---|---|
| Body Slam | | | 85 | 100 | 15 |
| Double-Edge | | | 120 | 100 | 15 |
| Explosion | | | 250 | 100 | 5 |
| Mimic | | | - | - | 10 |
| Rock Slide | | | 75 | 90 | 10 |
| Substitute | | | - | - | 10 |
| Class | |||||
|---|---|---|---|---|---|
| Block | | | - | - | 5 |
| Explosion | | | 250 | 100 | 5 |
| Flail | | | - | 100 | 15 |
| Rock Slide | | | 75 | 90 | 10 |
Rock Head
Prevents recoil damage.
Protects against recoil damage.
Sturdy
Negates 1-hit KO attacks.
Protects against the one-hit KO moves regardless of HP.
