Physical
Balanced
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
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
No Ultrasun Ultramoon entries available

It usually lives deep in mountains. But when it’s hungry, it shows up at the foot of the mountains and eats railroad tracks and cars.

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
DamageTypes
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
How to Beat Aron in Ultra Sun & Ultra Moon (Best Counters)
Cobalion
Cobalion
SteelFighting
A
Fighting deals 4x damage to AronView Cobalion →

Ultra Sun & Ultra Moon 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 79 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)
venusaurcharizardblastoisenidokingmeganiumferaligatrampharossceptileswampertslowbrorhydonslowking

Ultra Sun & Ultra Moon 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
Ability
Sturdy
Item
Shell Bell
Best Nature for Aron
HardyNEUTRAL

Aron best EVs are Speed

EVs

Doubles Utility Moveset

  • EndeavorCoverage
  • Iron HeadSTAB
  • DigCoverage
  • Unknown

Recommended Teammates

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
D30Normal
Lv 1
Tackle
4010035Normal
Lv 4
Mud-Slap
D2010010Ground
Lv 7
Headbutt
D7010015Normal
Lv 10
Metal Claw
D509535Steel
Lv 13
Rock Tomb
D609515Rock
Lv 16
Protect+4
S10Normal
Lv 19
Roar-6
C20Normal
Lv 22
Iron Head
S8010015Steel
Lv 25
Rock Slide
C759010Rock
Lv 28
Take Down
908520Normal
Lv 31
Metal Sound
8540Steel
Lv 34
Iron Tail
C1007515Steel
Lv 37
Iron Defense
C15Steel
Lv 40
Double-Edge
C12010015Normal
Lv 43
Autotomize
D15Steel
Lv 46
Heavy Slam
D10010Steel
Lv 49
Metal Burst
B10010Steel

TM Moves

TM
TM40
Aerial Ace
D6020Flying
TM45
Attract
C10015Normal
TM78
Bulldoze
D6010020Ground
TM100
Confide
D20Normal
TM32
Double Team
15Normal
TM26
Earthquake
C10010010Ground
TM42
Facade
D7010020Normal
TM21
Frustration
D10020Normal
TM10
Hidden Power
6010015Normal
TM17
Protect+4
S10Normal
TM18
Rain Dance
C5Water
TM44
Rest
C10Psychic
TM27
Return
D10020Normal
TM05
Roar-6
C20Normal
TM69
Rock Polish
C20Rock
TM80
Rock Slide
C759010Rock
TM39
Rock Tomb
D609515Rock
TM48
Round
D6010015Normal
TM37
Sandstorm
A10Rock
TM65
Shadow Claw
D7010015Ghost
TM88
Sleep Talk
C10Normal
TM90
Substitute
C10Normal
TM11
Sunny Day
C5Fire
TM87
Swagger
D8515Normal
TM06
Toxic
A9010Poison

Egg Moves

Egg
Egg
Body Slam
D8510015Normal
Egg
Curse
C10Ghost
Egg
Dragon Rush
1007510Dragon
Egg
Endeavor
S1005Normal
Egg
Head Smash
B150805Rock
Egg
Iron Head
S8010015Steel
Egg
Reversal
D10015Fighting
Egg
Screech
8540Normal
Egg
Smelling Salts
7010010Normal
Egg
Stealth Rock
B20Rock
Egg
Stomp
6510020Normal
Egg
Superpower
C1201005Fighting

Tutor Moves

Tut
Tutor
Earth Power
D9010010Ground
Tutor
Endeavor
S1005Normal
Tutor
Iron Defense
C15Steel
Tutor
Iron Head
S8010015Steel
Tutor
Iron Tail
C1007515Steel
Tutor
Magnet Rise
B10Electric
Tutor
Shock Wave
6020Electric
Tutor
Snore
5010015Normal
Tutor
Spite
D10010Ghost
Tutor
Stealth Rock
B20Rock
Tutor
Superpower
C1201005Fighting
Tutor
Uproar
9010010Normal
Tutor
Water Pulse
D6010020Water

Transfer Moves

Gen
Gen 4
Ancient Power
D601005Rock
Gen 4
Captivate
10020Normal
Gen 6
Cut
509530Normal
Gen 3
Defense Curl
D40Normal
Gen 6
Dig
S8010010Ground
Gen 4
Endure+4
C10Normal
Gen 4
Fury Cutter
D409520Bug
Gen 6
Hone Claws
C15Dark
Gen 3
Mimic
D10Normal
Gen 4
Natural Gift
10015Normal
Gen 6
Rock Smash
D4010015Fighting
Gen 4
Rollout
D309020Rock
Gen 6
Secret Power
7010020Normal
Gen 6
Strength
8010015Normal

How to Get Aron in Ultra Sun & Ultra Moon

Aron doesn't appear in Ultra Sun & Ultra Moon. Transfer it from Ruby, Emerald, or Brilliant Diamond to add it to your collection. Check the source games below for encounter details.

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

Also found in:

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 Ultra Sun & Ultra Moon, 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 Ultra Sun & Ultra Moon. 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.

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