Encounter locations
| Region | Location | Method | Level |
|---|---|---|---|
| Hoenn | Granite Cave B1F | Walking | 9–11 |
| Hoenn | Granite Cave B2F | Walking | 10–12 |
| Hoenn | Granite Cave Stevens Room | Walking | 7–8 |
| Hoenn | Victory Road 1F | Walking | 36 |
| Unova | Mistralton Cave | Overworld swarmOnly while this swarm is active | — |
| Sinnoh | Fuego Ironworks | Overworld swarmOnly while this swarm is active | — |
| Sinnoh | Oreburgh Mine | Overworld swarmOnly while this swarm is active | — |
| Johto | Cliff Cave | Overworld swarmOnly while this swarm is active | — |
| Johto | Route 46 | Overworld swarmOnly while this swarm is active | — |
This Pokémon is eligible for Mirage Rifts. Each opening rolls its own pool, so check active portals on the Town Map.
Check the Town Map to see which swarms are active.
This guide covers documented encounter tables and selected story events. Other scripted gifts or events may also award this Pokémon.
Natures
Randomly generated Pokémon can have any of the 25 natures. Twenty raise one stat by 10% and lower another by 10%. Five are neutral. HP stays the same.
View all 25 natures and stat effects
| Nature | Raises (+10%) | Lowers (−10%) |
|---|---|---|
| Hardy | — | — |
| Lonely | Attack | Defense |
| Brave | Attack | Speed |
| Adamant | Attack | Special Attack |
| Naughty | Attack | Special Defense |
| Bold | Defense | Attack |
| Docile | — | — |
| Relaxed | Defense | Speed |
| Impish | Defense | Special Attack |
| Lax | Defense | Special Defense |
| Timid | Speed | Attack |
| Hasty | Speed | Defense |
| Serious | — | — |
| Jolly | Speed | Special Attack |
| Naive | Speed | Special Defense |
| Modest | Special Attack | Attack |
| Mild | Special Attack | Defense |
| Quiet | Special Attack | Speed |
| Bashful | — | — |
| Rash | Special Attack | Special Defense |
| Calm | Special Defense | Attack |
| Gentle | Special Defense | Defense |
| Sassy | Special Defense | Speed |
| Careful | Special Defense | Special Attack |
| Quirky | — | — |
Stats and abilities
- HP
- 50
- Attack
- 70
- Defense
- 100
- Sp. Attack
- 40
- Sp. Defense
- 40
- Speed
- 30
Abilities · Sturdy / Rock Head
Hidden ability · Heavy Metal
Size · 0.4 m · 60 kg
Evolution and forms
- Into Lairon · Level 32
Level-up moves
View level-up moves for Aron
| Level | Move |
|---|---|
| 1 | Tackle |
| 1 | Harden |
| 4 | Metal Claw |
| 8 | Rock Tomb |
| 12 | Roar |
| 16 | Headbutt |
| 20 | Protect |
| 24 | Rock Slide |
| 28 | Iron Head |
| 33 | Metal Sound |
| 36 | Take Down |
| 40 | Autotomize |
| 44 | Iron Tail |
| 48 | Iron Defense |
| 52 | Heavy Slam |
| 56 | Double Edge |
| 60 | Metal Burst |