What does Aron evolve into?

Aron becomes Lairon at level 32, then Aggron at level 42. Straight three-stage line with no branching.

At what level does Aron evolve?

Aron evolves into Lairon at level 32. Takes some grinding. Plan your team around the mid-game wait.

For Omega Ruby & Alpha Sapphire, you can run Aron through the first few routes without issues. 330 BST won't carry you far though. Get it to Lairon as fast as you can.

Where can you catch Aron?

Aron is catchable in Omega Ruby & Alpha Sapphire. Check the Locations section above for specific routes, encounter rates, and methods. It also appears in 14 other games across the series.

Aron - Weakness, Evolution, Moveset, EVs & Stats

Physical

Balanced

DTier

30Speed · Very Slow

Stats & Training

Defense and Attack carry most of Aron's stat budget. Speed's the obvious dump stat. Common in the wild and yields 1 Defense EV. Follows a slow 1.25M XP grind.

Base Stats

Avg

HP50

Attack70

Defense100

Sp. Atk40

Sp. Def40

Speed30

Total330

Details

Catch Rate

Moderate180 / 255

Growth Rate

Slow1.25M XP

Height0.4 m

Weight60.0 kg

Base XP66

Abilities

SturdyTop Pick

Prevents being KOed from full HP, leaving 1 HP instead. Protects against the one-hit KO moves regardless of HP.

Rock Head

Protects against recoil damage.

Heavy MetalHA

Doubles the Pokémon's weight.

EV Yield

HPAtkDef+1SpASpDSpe

Defense training source

Pokedex Entries

This Pokémon has a body of steel. To make its body, Aron feeds on iron ore that it digs from mountains. Occasionally, it causes major trouble by eating bridges and rails.

Aron Weakness

Aron is weak to Fighting, Ground, and Water. Watch out for Fighting and Ground attacks, those deal 4x damage. On the flip side, it's immune to Poison-type moves entirely. With 8 resistances, the defensive profile is strong. Aron's physical bulk (base 100 Def) helps cushion physical weakness hits, but special attackers are the bigger threat.

Aron Weakness and Resistance Chart
Damage	Types
4x (Critical)	Fighting, Ground
2x (Weak)	Water
0.5x (Resist)	Ice, Psychic, Bug, Rock, Dragon, Fairy
0.25x (Resist)	Normal, Flying
0x (Immune)	Poison

Type ChartGood

3Weak

8Resist

1Immune

Score+3

4xCritical

Fighting Ground

2xWeak

Water

½xResist

Ice Psychic Bug Rock Dragon Fairy

¼xResist

Normal Flying

0xImmune

Poison

STAB (6)

Ice Rock Fairy Fire Flying Bug

How to Beat Aron in Omega Ruby & Alpha Sapphire (Best Counters)

Relicanth WaterRock	C
Available Moves Moves SurfHM03 Water GunLv. 10 Damage vs Aron Surf 2x 93-111%KO Water Gun 2x 43-52% View Relicanth builds →
Lanturn WaterElectric	C
Available Moves Moves SurfHM03 BubbleLv. 1 Water GunLv. 12 Damage vs Aron Surf 2x 133-157%KO Bubble 2x 61-72% Water Gun 2x 61-72% View Lanturn builds →
Makuhita Fighting	D
Available Moves Moves SurfHM03 Force PalmLv. 13 Arm ThrustLv. 7 Damage vs Aron Surf 2x 43-52% Force Palm 4x 87-104%KO Arm Thrust 4x 33-39% View Makuhita builds →
Omanyte RockWater	D
Obtain MethodRustboro City Gift Available Moves Moves SurfHM03 Water GunLv. 10 Damage vs Aron Surf 2x 143-170%KO Water Gun 2x 72-85% View Omanyte builds →
Kabuto RockWater	D
Obtain MethodRustboro City Gift Available Moves Moves SurfHM03 Mud ShotLv. 16 Damage vs Aron Surf 2x 104-124%KO Mud Shot 4x 87-104%KO View Kabuto builds →

Omega Ruby & Alpha Sapphire Evolution

Three stages ahead. Aron grows into Lairon, then pushes on to Aggron. Check the evolution methods below. For breeding, slow to hatch with plenty of partners via one egg group. Evolving adds up to 200 stat points total. View every chain in the Evolution Chart.

How to Evolve

3 Forms

#304Aron

Level 32

#305Lairon

Level 42

#306Aggron

Stat Comparison 3 Stages

Aron

SteelRock

Lairon

SteelRock

Aggron

SteelRock

60+10

70+10

ATK

90+20

110+20

DEF

100

140+40

180+40

SP.ATK

50+10

60+10

SP.DEF

50+10

60+10

SPE

40+10

50+10

BST

330D-Tier

430D-Tier+100

530C-Tier+100

ROLE

Balanced

Trick Room

Balanced

TYPE

Physical

Breeding

Moderate

Breed Aron with 75 breeding partners from the Monster egg group. Pass egg moves like Body Slam, Curse, Dragon Rush and 9 more to offspring.

Egg Groups

Monster

Gender

♂50.0%♀50.0%

Hatch Time

35 cycles·8,995 steps

Slow~9 min with Flame Body

Egg Moves

12moves

Breed With (best first)

Omega Ruby & Alpha Sapphire Aron Best Moveset

Aron runs a standard attacker set. Hardy nature with flexible EVs shapes the build, while Shellbell brings extra utility. Sturdy supports the kit from the background.

Best Build

Experimental

Ability

Sturdy

Item

Shell Bell

Best Nature for Aron

HardyNEUTRAL

Utility Moveset

EndeavorCoverage
ToxicUtility
SandstormUtility
ProtectFAST +4

Recommended Teammates

CloysterGood

TyranitarGood

ForretressGood

Moves

Breeding opens up real options for Aron. Body Slam and Curse come exclusively from egg moves, and they're worth the effort. The rest of the kit covers basics through Head Smash and Iron Tail and coverage across 9 types.

Level-Up Moves

Lv 1

Harden

———30Normal

Lv 1

Tackle

D5010035Normal

Lv 4

Mud-Slap

D2010010Ground

Lv 7

Headbutt

D7010015Normal

Lv 10

Metal Claw

—509535Steel

Lv 13

Rock Tomb

D609515Rock

Lv 16

Protect+4

S——10Normal

Lv 19

Roar-6

C——20Normal

Lv 22

Iron Head

B8010015Steel

Lv 25

Rock Slide

C759010Rock

Lv 28

Take Down

—908520Normal

Lv 31

Metal Sound

——8540Steel

Lv 34

Iron Tail

C1007515Steel

Lv 37

Iron Defense

D——15Steel

Lv 40

Double-Edge

C12010015Normal

Lv 43

Autotomize

D——15Steel

Lv 46

Heavy Slam

D—10010Steel

Lv 49

Metal Burst

D—10010Steel

TM Moves

TM40

Aerial Ace

D60—20Flying

TM45

Attract

D—10015Normal

TM78

Bulldoze

S6010020Ground

TM100

Confide

———20Normal

HM01

Cut

D509530Normal

TM28

Dig

B8010010Ground

TM32

Double Team

———15Normal

TM26

Earthquake

C10010010Ground

TM42

Facade

D7010020Normal

TM21

Frustration

D—10020Normal

TM10

Hidden Power

—6010015Normal

TM01

Hone Claws

C——15Dark

TM17

Protect+4

S——10Normal

TM18

Rain Dance

C——5Water

TM44

Rest

C——10Psychic

TM27

Return

D—10020Normal

TM05

Roar-6

C——20Normal

TM69

Rock Polish

D——20Rock

TM80

Rock Slide

C759010Rock

HM06

Rock Smash

—4010015Fighting

TM39

Rock Tomb

D609515Rock

TM48

Round

D6010015Normal

TM37

Sandstorm

S——10Rock

TM94

Secret Power

—7010020Normal

TM65

Shadow Claw

D7010015Ghost

TM88

Sleep Talk

C——10Normal

HM04

Strength

—8010015Normal

TM90

Substitute

C——10Normal

TM11

Sunny Day

C——5Fire

TM87

Swagger

——9015Normal

TM06

Toxic

S—9010Poison

Egg Moves

Egg

Body Slam

D8510015Normal

Egg

Curse

C——10Ghost

Egg

Dragon Rush

D1007510Dragon

Egg

Endeavor

S—1005Normal

Egg

Head Smash

B150805Rock

Egg

Iron Head

B8010015Steel

Egg

Reversal

——10015Fighting

Egg

Screech

——8540Normal

Egg

Smelling Salts

—7010010Normal

Egg

Stealth Rock

B——20Rock

Egg

Stomp

—6510020Normal

Egg

Superpower

C1201005Fighting

Tutor Moves

Tut

Tutor

Earth Power

D9010010Ground

Tutor

Endeavor

S—1005Normal

Tutor

Iron Defense

D——15Steel

Tutor

Iron Head

B8010015Steel

Tutor

Iron Tail

C1007515Steel

Tutor

Magnet Rise

D——10Electric

Tutor

Shock Wave

—60—20Electric

Tutor

Snore

—5010015Normal

Tutor

Spite

——10010Ghost

Tutor

Stealth Rock

B——20Rock

Tutor

Superpower

C1201005Fighting

Tutor

Uproar

D9010010Normal

Tutor

Water Pulse

D6010020Water

Transfer Moves

Gen

Gen 4

Ancient Power

B601005Rock

Gen 4

Captivate

——10020Normal

Gen 3

Defense Curl

———40Normal

Gen 4

Endure+4

D——10Normal

Gen 4

Fury Cutter

D409520Bug

Gen 3

Mimic

———10Normal

Gen 4

Natural Gift

D—10015Normal

Gen 4

Rollout

D309020Rock

Omega Ruby & Alpha Sapphire Aron Locations

Aron is available from early-game routes onward at high spawn rates. 14 encounter spots give you plenty of options. Grab one early and it'll be ready to evolve or train by mid-game.

Best Locations to Catch Aron in Omega Ruby & Alpha Sapphire

Aron's encounter pool splits between Alpha Sapphire and Omega Ruby. You've got 14 walking spots at Lv. 6-20 total, but your version determines which ones actually show up.

Granite Cave - Area 2

Alpha SapphireGrass Lv.6 Cave

35%Early

Horde battle

Granite Cave - Area 2

Omega RubyGrass Lv.6 Cave

35%Early

Horde battle

Granite Cave - Area 3

Omega RubyGrass Lv.6 Cave

35%Early

Horde battle

Granite Cave - Area 3

Alpha SapphireGrass Lv.6 Cave

35%Early

Horde battle

Granite Cave - Area 2

Alpha SapphireGrass Lv.10-12 Cave

30%Early

Granite Cave - Area 2

Omega RubyGrass Lv.10-12 Cave

30%Early

Granite Cave - Area 3

Omega RubyGrass Lv.10-12 Cave

30%Early

Granite Cave - Area 3

Alpha SapphireGrass Lv.10-12 Cave

30%Early

Victory Road - Area 1

Omega RubyGrass Lv.20 Cave

35%Mid

Horde battle

Victory Road - Area 1

Alpha SapphireGrass Lv.20 Cave

35%Mid

Horde battle

Victory Road - Area 2

Alpha SapphireGrass Lv.20 Cave

35%Mid

Horde battle

Victory Road - Area 2

Omega RubyGrass Lv.20 Cave

35%Mid

Horde battle

Victory Road - Area 3

Alpha SapphireGrass Lv.20 Cave

35%Mid

Horde battle

Victory Road - Area 3

Omega RubyGrass Lv.20 Cave

35%Mid

Horde battle

Aron Guide

Aron becomes Lairon at level 32, then Aggron at level 42. Straight three-stage line with no branching.
Aron evolves into Lairon at level 32. Takes some grinding. Plan your team around the mid-game wait.
For Omega Ruby & Alpha Sapphire, you can run Aron through the first few routes without issues. 330 BST won't carry you far though. Get it to Lairon as fast as you can.
Aron is catchable in Omega Ruby & Alpha Sapphire. Check the Locations section above for specific routes, encounter rates, and methods. It also appears in 14 other games across the series.

Game Availability

Available in 15 titles since its debut in Ruby & Sapphire, Aron spans 8 generations of Pokemon games. It's accessible through catching or hatching as a base form in most mainline games.

Click a game to view version-specific details

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Omanyte RockWater	D
Obtain MethodRustboro City Gift Available Moves Moves SurfHM03 Water GunLv. 10 Damage vs Aron Surf 2x 138-164%KO Water Gun 2x 67-79% View Omanyte builds →
Kabuto RockWater	D
Obtain MethodRustboro City Gift HM Move Moves SurfHM03 Damage vs Aron Surf 2x 102-121%KO View Kabuto builds →
Tirtouga WaterRock	D
Obtain MethodRustboro City Gift Available Moves Moves SurfHM03 Water GunLv. 1 Damage vs Aron Surf 2x 102-121%KO Water Gun 2x 48-57% View Tirtouga builds →
Shellos Water	D
Available Moves Moves SurfHM03 Mud BombLv. 11 Water PulseLv. 7 Mud-SlapLv. 1 Damage vs Aron Surf 2x 102-121%KO Mud Bomb 4x 105-124%KO Water Pulse 2x 71-86% Mud-Slap 4x 40-48% View Shellos builds →
Totodile Water	D
Obtain MethodRoute 101 Gift Available Moves Moves SurfHM03 Water GunLv. 6 Damage vs Aron Surf 2x 90-107%KO Water Gun 2x 40-50% View Totodile builds →

Geodude RockGround	C
Available Move Moves BulldozeLv. 22 Damage vs Aron Bulldoze 4x 102-120%KO View Geodude builds →
Relicanth WaterRock	C
Available Moves Moves SurfHM03 Water GunLv. 10 Damage vs Aron Surf 2x 89-106%KO Water Gun 2x 43-51% View Relicanth builds →
Timburr Fighting	D
Available Move Moves Wake-Up SlapLv. 20 Damage vs Aron Wake-Up Slap 4x 109-129%KO View Timburr builds →
Nincada BugGround	D
Available Move Moves Mud-SlapLv. 17 Damage vs Aron Mud-Slap 4x 38-46% View Nincada builds →
Makuhita Fighting	D
Available Moves Moves SurfHM03 Vital ThrowLv. 22 Force PalmLv. 13 Arm ThrustLv. 7 Damage vs Aron Surf 2x 42-49% Vital Throw 4x 94-111%KO Force Palm 4x 86-102%KO Arm Thrust 4x 31-37% View Makuhita builds →

Trapinch Ground	C
Available Moves Moves Earth PowerLv. 26 DigTM28 BulldozeTM78 Rock SmashHM06 Damage vs Aron Earth Power 4x 180-213%KO Dig 4x 147-174%KO Bulldoze 4x 113-134%KO Rock Smash 4x 53-63% View Trapinch builds →
Numel FireGround	D
Available Moves Moves Earth PowerLv. 26 DigTM28 BulldozeTM78 Rock SmashHM06 Damage vs Aron Earth Power 4x 228-268%KO Dig 4x 107-126%KO Bulldoze 4x 80-95% Rock Smash 4x 39-47% View Numel builds →
Sandshrew Ground	D
Available Moves Moves DigTM28 BulldozeTM78 Rock SmashHM06 Sand TombLv. 23 Damage vs Aron Dig 4x 120-142%KO Bulldoze 4x 93-111%KO Rock Smash 4x 45-53% Sand Tomb 4x 59-71% View Sandshrew builds →
Sandile GroundDark	D
Available Moves Moves DigTM28 BulldozeTM78 Sand TombLv. 13 Mud-SlapLv. 19 Damage vs Aron Dig 4x 120-142%KO Bulldoze 4x 93-111%KO Sand Tomb 4x 59-71% Mud-Slap 4x 39-47% View Sandile builds →
Diglett Ground	D
Available Moves Moves Earth PowerLv. 29 DigTM28 Mud BombLv. 26 BulldozeTM78 Damage vs Aron Earth Power 4x 154-182%KO Dig 4x 100-118%KO Mud Bomb 4x 113-134%KO Bulldoze 4x 74-87% View Diglett builds →

Trapinch Ground	C
Available Moves Moves Earth PowerLv. 26 DigTM28 BulldozeTM78 Rock SmashHM06 Damage vs Aron Earth Power 4x 181-215%KO Dig 4x 151-178%KO Bulldoze 4x 112-133%KO Rock Smash 4x 54-64% View Trapinch builds →
Numel FireGround	D
Available Moves Moves Earth PowerLv. 26 DigTM28 BulldozeTM78 Rock SmashHM06 Damage vs Aron Earth Power 4x 226-267%KO Dig 4x 106-126%KO Bulldoze 4x 81-96% Rock Smash 4x 37-44% View Numel builds →
Scraggy DarkFighting	D
Available Moves Moves High Jump KickLv. 31 DigTM28 Brick BreakLv. 20 Low SweepTM47 Damage vs Aron High Jump Kick 4x 195-230%KO Dig 4x 79-94% Brick Break 4x 112-133%KO Low Sweep 4x 100-119%KO View Scraggy builds →
Sandshrew Ground	D
Available Moves Moves DigTM28 BulldozeTM78 Rock SmashHM06 Sand TombLv. 23 Damage vs Aron Dig 4x 119-141%KO Bulldoze 4x 94-111%KO Rock Smash 4x 42-49% Sand Tomb 4x 56-67% View Sandshrew builds →
Sandile GroundDark	D
Available Moves Moves DigTM28 BulldozeTM78 Sand TombLv. 13 Mud-SlapLv. 19 Damage vs Aron Dig 4x 119-141%KO Bulldoze 4x 94-111%KO Sand Tomb 4x 56-67% Mud-Slap 4x 43-52% View Sandile builds →

Numel FireGround	D
Available Moves Moves Earth PowerLv. 26 DigTM28 BulldozeTM78 Rock SmashHM06 Damage vs Aron Earth Power 4x 237-279%KO Dig 4x 106-126%KO Bulldoze 4x 83-98% Rock Smash 4x 40-47% View Numel builds →
Scraggy DarkFighting	D
Available Moves Moves High Jump KickLv. 31 DigTM28 Brick BreakLv. 20 Low SweepTM47 Damage vs Aron High Jump Kick 4x 190-223%KO Dig 4x 79-93% Brick Break 4x 112-133%KO Low Sweep 4x 100-119%KO View Scraggy builds →
Machop Fighting	D
Available Moves Moves SubmissionLv. 33 DigTM28 Vital ThrowLv. 25 Wake-Up SlapLv. 27 Damage vs Aron Submission 4x 130-153%KO Dig 4x 86-102%KO Vital Throw 4x 112-133%KO Wake-Up Slap 4x 112-133%KO View Machop builds →
Sandshrew Ground	D
Available Moves Moves DigTM28 BulldozeTM78 Rock SmashHM06 Sand TombLv. 23 Damage vs Aron Dig 4x 119-140%KO Bulldoze 4x 94-112%KO Rock Smash 4x 43-51% Sand Tomb 4x 59-70% View Sandshrew builds →
Sandile GroundDark	D
Available Moves Moves DigTM28 BulldozeTM78 Sand TombLv. 13 Mud-SlapLv. 19 Damage vs Aron Dig 4x 119-140%KO Bulldoze 4x 88-105%KO Sand Tomb 4x 59-70% Mud-Slap 4x 41-49% View Sandile builds →

Excadrill GroundSteel	S
Recommended Build AbilityMold Breaker ItemLeftovers NatureJolly Moves EarthquakeSTAB Rapid Spin Iron Head Stealth Rock Damage vs Aron Earthquake 4x 281-331%KO Rapid Spin 6-7% View Excadrill builds →
Garchomp DragonGround	A
Recommended Build AbilityRough Skin ItemRocky Helmet NatureJolly Moves EarthquakeSTAB Stealth Rock Swords Dance Dragon Claw Damage vs Aron Earthquake 4x 273-321%KO View Garchomp builds →
Breloom GrassFighting	B
Recommended Build AbilityTechnician ItemMiracleseed NatureJolly Moves SporeUtility Bullet Seed Mach Punch Swords Dance Damage vs Aron Bullet Seed 17-20% Mach Punch 4x 112-132%KO View Breloom builds →
Gastrodon WaterGround	B
Recommended Build AbilityStormdrain ItemLeftovers NatureQuiet Moves Earth Power ScaldSTAB RecoverRecovery ProtectPriority Damage vs Aron Scald 2x 161-189%KO View Gastrodon builds →
Machamp Fighting	B
Recommended Build AbilityNoguard ItemAssault Vest NatureAdamant Moves Dynamic Punch Knock Off Bullet Punch Stone Edge Damage vs Aron Knock Off 33-39% Bullet Punch 20-24% Stone Edge 25-29% View Machamp builds →