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
D
Attack70
C
Defense100
B
Sp. Atk40
D
Sp. Def40
D
Speed30
F
Total330
Details
Catch Rate
Moderate180 / 255
Growth Rate
Slow1.25M XP
Height0.4 m
1'04"Tiny
Weight60.0 kg
132.3 lbsStandard
Base XP66
Low Yield
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 MetalHANot in game
Doubles the Pokémon's weight.
EV Yield
HPAtkDef+1SpASpDSpe
Defense training source
Pokedex Entries

When it evolves, it sheds the steel carapace that covered its whole body and develops a new one.

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 9 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
DamageTypes
4x (Critical)Fighting, Ground
2x (Weak)Water
0.5x (Resist)Ice, Psychic, Bug, Rock, Ghost, Dragon, Dark
0.25x (Resist)Normal, Flying
0x (Immune)Poison
Type ChartGood
3Weak
9Resist
1Immune
Score+4
Gen IV Type Chart
  • Fairy type does not exist — Dragon has fewer checks
  • Physical / Special split now per-move (introduced Gen IV)
4xCritical
FightingGround
2xWeak
Water
½xResist
IcePsychicBugRockGhostDragonDark
¼xResist
NormalFlying
0xImmune
Poison
STAB (5)
IceRockFireFlyingBug
How to Beat Aron in HeartGold & SoulSilver (Best Counters)

In HeartGold & SoulSilver, Infernape can KO Aron with Close Combat (281-331%). Flygon threatens a KO with Earthquake (228-269%). Swampert's Earthquake also KOs at 197-232%.

Infernape
Infernape
FireFighting
A
Recommended Build
AbilityBlaze
ItemExpert Belt
NatureJolly
Moves
  • Close Combat
  • U Turn
  • Grass Knot
  • Fire Blast
Damage vs Aron
Close Combat 4x
281-331%KO
U Turn
14-16%
Fire Blast
93-110%KO
View Infernape builds →

HeartGold & SoulSilver 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
Aron
#304Aron
32
Level 32
Lairon
#305Lairon
42
Level 42
Aggron
#306Aggron
Stat Comparison 3 Stages
Aron
SteelRock
Lairon
SteelRock
Aggron
SteelRock
HP
50
60+10
70+10
ATK
70
90+20
110+20
DEF
100
140+40
180+40
SP.ATK
40
50+10
60+10
SP.DEF
40
50+10
60+10
SPE
30
40+10
50+10
BST
330D-Tier
430D-Tier+100
530C-Tier+100
ROLE
Balanced
Trick Room
Balanced
TYPE
Physical
Physical
Physical

Breeding

Moderate

Breed Aron with 63 breeding partners from the Monster egg group. Pass egg moves like Body Slam, Curse, Dragon Rush and 6 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
9moves
Breed With (best first)
venusaurcharizardblastoisenidokingmeganiumferaligatrampharossceptileswampertslowbrorhydonslowking
12 of 63·

HeartGold & SoulSilver Aron Best Moveset

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

Best Build

Experimental
Utility
Ability
Sturdy
Item
Shell Bell
Best Nature for Aron
HardyNEUTRAL

Aron best EVs are Speed

EVs

Utility Moveset

  • Unknown
  • EndeavorCoverage
  • ProtectFAST +4
  • RoarSLOW -6Utility

Recommended Teammates

Breloom
BreloomDecent
Tyranitar
TyranitarDecent
Torterra
TorterraDecent

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
Tackle
—3510035Normal
Lv 4
Harden
———30Normal
Lv 8
Mud-Slap
D2010010Ground
Lv 11
Headbutt
D7010015Normal
Lv 15
Metal Claw
—509535Steel
Lv 18
Iron Defense
D——15Steel
Lv 22
Roar-6
A——20Normal
Lv 25
Take Down
—908520Normal
Lv 29
Iron Head
C8010015Steel
Lv 32
Protect+4
A——10Normal
Lv 36
Metal Sound
——8540Steel
Lv 39
Iron Tail
C1007515Steel
Lv 43
Double-Edge
C12010015Normal
Lv 46
Metal Burst
D—10010Steel

TM Moves

TM
TM40
Aerial Ace
D60—20Flying
TM45
Attract
——10015Normal
TM78
Captivate
——10020Normal
HM01
Cut
—509530Normal
TM28
Dig
D8010010Ground
TM32
Double Team
———15Normal
TM26
Earthquake
C10010010Ground
TM58
Endure+4
———10Normal
TM42
Facade
D7010020Normal
TM21
Frustration
D—10020Normal
TM10
Hidden Power
—6010015Normal
TM23
Iron Tail
C1007515Steel
TM83
Natural Gift
D—10015Normal
TM17
Protect+4
A——10Normal
TM18
Rain Dance
C——5Water
TM44
Rest
C——10Psychic
TM27
Return
D—10020Normal
TM05
Roar-6
A——20Normal
TM69
Rock Polish
C——20Rock
TM80
Rock Slide
C759010Rock
HM06
Rock Smash
D4010015Fighting
TM39
Rock Tomb
D609510Rock
TM37
Sandstorm
———10Rock
TM43
Secret Power
—7010020Normal
TM65
Shadow Claw
D7010015Ghost
TM34
Shock Wave
D60—20Electric
TM82
Sleep Talk
C——10Normal
TM76
Stealth Rock
B——20Rock
HM04
Strength
D8010015Normal
TM90
Substitute
C——10Normal
TM11
Sunny Day
C——5Fire
TM87
Swagger
——9015Normal
TM06
Toxic
C—8510Poison
TM03
Water Pulse
D6010020Water

Egg Moves

Egg
Egg
Body Slam
D8510015Normal
Egg
Curse
C——10Ghost
Egg
Dragon Rush
—1007510Dragon
Egg
Endeavor
S—1005Normal
Egg
Head Smash
B150805Rock
Egg
Iron Head
C8010015Steel
Egg
Screech
——8540Normal
Egg
Smelling Salts
—7010010Normal
Egg
Stomp
—6510020Normal

Tutor Moves

Tut
Tutor
Ancient Power
D601005Rock
Tutor
Earth Power
D9010010Ground
Tutor
Endeavor
S—1005Normal
Tutor
Fury Cutter
—109520Bug
Tutor
Headbutt
D7010015Normal
Tutor
Iron Defense
D——15Steel
Tutor
Iron Head
C8010015Steel
Tutor
Magnet Rise
D——10Electric
Tutor
Mud-Slap
D2010010Ground
Tutor
Rollout
—309020Rock
Tutor
Snore
D4010015Normal
Tutor
Spite
——10010Ghost
Tutor
Superpower
C1201005Fighting
Tutor
Uproar
—9010010Normal

Transfer Moves

Gen
Gen 3
Defense Curl
———40Normal
Gen 3
Mimic
———10Normal

How to Get Aron in HeartGold & SoulSilver

Aron can't be caught in HeartGold & SoulSilver. Bring it over from Ruby, Emerald, or Brilliant Diamond instead. The encounter info below covers the source games.

Aron is not available as a wild encounter in this game.

Available in:

DiamondPokeradar · Fuego IronworksPlatinumPokeradar · Fuego Ironworks

Then trade to HeartGold & SoulSilver.

Also found in:

RubyEmeraldWhiteBlack 2XOmega Ruby

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 HeartGold & SoulSilver, 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 HeartGold & SoulSilver. 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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