303MS.png #303: Mawile
Pokémon
#305: Lairon 305MS.png
This article is about the species. For a specific instance of this species, see Aron (disambiguation).
Aron
Iron Armor Pokémon
ココドラ
Cokodora
#304
Aron



Images on the Bulbagarden Archives
Type
Steel Rock
Unknown Unknown
Unknown Unknown
Unknown Unknown
Unknown Unknown
Unknown Unknown
Abilities
Sturdy or Rock Head Cacophony
Cacophony
Heavy Metal
Hidden Ability
Cacophony
Hidden Ability
Cacophony
Cacophony
Gender ratio
Unknown
50% male, 50% female
Catch rate
180 (33.8%)
Breeding
Egg Group
Monster
Hatch time
36 cycles
Height
1'04" 0.4 m
Aron
0'0" 0 m
{{{form2}}}
0'0" 0 m
{{{form3}}}
0'0" 0 m
{{{form4}}}
Weight
132.3 lbs. 60.0 kg
Aron
0 lbs. 0 kg
{{{form2}}}
0 lbs. 0 kg
{{{form3}}}
0 lbs. 0 kg
{{{form4}}}
Mega Stone
[[|]] [[|]]
Base experience yield
96
Gen. III-IV
Unknown
IV
66
V+
Leveling rate
Slow
EV yield
Total: 1
Aron
0
HP
0
Atk
1
Def
0
Sp.Atk
0
Sp.Def
0
Speed
0
HP
0
Atk
0
Def
0
Sp.Atk
0
Sp.Def
0
Speed
0
HP
0
Atk
0
Def
0
Sp.Atk
0
Sp.Def
0
Speed
0
HP
0
Atk
0
Def
0
Sp.Atk
0
Sp.Def
0
Speed
Shape
Body08.png
Footprint
F304.png F000.png
{{{form2}}}
Pokédex color
Gray
Base friendship
35
External Links

Aron (Japanese: ココドラ Cokodora) is a dual-type Steel/Rock Pokémon introduced in Generation III.

It evolves into Lairon starting at level 32, which evolves into Aggron starting at level 42.

Biology

Aron is a quadruped Pokémon with four stubby legs and a large round head. Its body is black with plates of gray armor covering its head, back, and legs. Throughout its body are small openings in the armor. There are six openings on its head, with the largest two being openings for its pale blue eyes, and one opening on either side of the spike on its back. A single, blunt spike protrudes from its back.

Aron feeds on iron ore that it digs from mountains. It uses this ore to make its body. Sometimes hunger will drive it to descend from the mountains to eat bridges and rails, which makes it a pest. It makes a new suit of armor after evolving, while its old discarded armor is salvaged for making iron products. With one all-out charge, it can demolish even a heavy dump truck. It lives on mountains.

In the anime

 
An Aron in the anime

Major appearances

Aron first appeared in A Hole Lotta Trouble. Ash, May, Max, Brock and Team Rocket got themselves lost in a cave full of the Iron Armor Pokémon. Steven, who also owns one, helped them pass through the cave.

Minor appearances

An Aron appeared in Gone Corphishin' in a fantasy.

Aron, together with its evolutionary family Aggron and Lairon, appeared in Giratina and the Sky Warrior where they helped Ash's friends stop the glacier. The group appeared again in the credits, where they were seen eating the ruins of the Megarig.

An Aron appeared in Steeling Peace of Mind! and several Aron appeared in Saving the World From Ruins!

A group of Aron also appeared in Genesect and the Legend Awakened at Pokémon Hills.

An Aron appeared in SS027.

A Trainer's Aron appeared in a picture in Origins of Mega Evolution!.

An Aron made a brief appearance in Mega Evolution Special II.

A wild Aron appeared in Volcanion and the Mechanical Marvel. This Aron was seen as one of the Pokémon at Nebel Plateau.

Pokédex entries

Episode Pokémon Source Entry
AG022 Aron Ash's Pokédex Aron, the Iron Armor Pokémon. Aron has an impressive defense power and eats iron ore in order to build up the metal in its body.

In the manga

In the Pokémon Adventures manga

Main article: Rono

Sapphire owns an Aron nicknamed Rono who first appeared in Distracting Dustox. He evolved before facing Brawly at the Dewford Gym, and after a long stay in her team during which he fought Team Aqua a few times, evolved on Mirage Island as she trained with Ruby there. He was her first Pokémon.

Pokédex entries

Manga Chapter Entry
Pokémon Adventures PS188 To sustain its body of iron, it feeds on iron ore dug from mountains. It sometimes creates problems by eating bridges and rails.*
Pokémon Adventures PS188 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.*

In the TCG

Main article: Aron (TCG)

Game data

NPC appearances

Pokédex entries

This Pokémon was unavailable prior to Generation III.
Generation III
Ruby 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.
Sapphire Aron has a body of steel. With one all-out charge, this Pokémon can demolish even a heavy dump truck. The destroyed dump truck then becomes a handy meal for the Pokémon.
Emerald A Pokémon that is clad in steel armor. A new suit of armor is made when it evolves. The old, discarded armor is salvaged as metal for making iron products.
FireRed It eats iron to build its steel body. It is a pest that descends from mountains to eat bridges and train tracks.
LeafGreen
Generation IV
Diamond It usually lives deep in mountains. However, hunger may drive it to eat railroad tracks and cars.
Pearl
Platinum
HeartGold When it evolves, it sheds the steel carapace that covered its whole body and develops a new one.
SoulSilver
Generation V
Black It usually lives deep in mountains. However, hunger may drive it to eat railroad tracks and cars.
White
Black 2 In order to build up its steel body, it eats iron ore. This pesky Pokémon is known to eat railroad tracks.
White 2
Generation VI
X It usually lives deep in mountains. However, hunger may drive it to eat railroad tracks and cars.
Y When it evolves, it sheds the steel carapace that covered its whole body and develops a new one.
Omega Ruby 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.
Alpha Sapphire Aron has a body of steel. With one all-out charge, this Pokémon can demolish even a heavy dump truck. The destroyed dump truck then becomes a handy meal for the Pokémon.


Game locations

This Pokémon was unavailable prior to Generation III.
Generation III
Ruby Sapphire
Granite Cave, Victory Road
Emerald
Granite Cave, Victory Road
FireRed LeafGreen
Trade
Colosseum
Trade
XD
Cave Poké Spot
Generation IV
Diamond
Fuego Ironworks (Poké Radar)
Pearl
Trade
Platinum
Fuego Ironworks (Poké Radar)
HeartGold SoulSilver
Safari Zone
Pal Park
Mountain
Generation V
Black
Trade
White
White Forest
Black 2 White 2
Mistralton Cave
Dream World
Icy Cave
Generation VI
X
Terminus Cave (Horde Encounter)
Y
Trade
Omega Ruby Alpha Sapphire
Granite Cave
Victory Road (Horde Encounter)
Generation VII
Sun Moon
Pokémon Bank


In side games

This Pokémon was unavailable prior to Generation III.
Generation III
Pinball: R&S
Hatch from Egg
Trozei!
Secret Storage 5, Secret Storage 16, Endless Level 18, Mr. Who's Den
MD Red MD Blue
Mt. Steel (1F-8F), Buried Relic (14F-19F), Wish Cave (7F-10F)
Generation IV
MD Time MD Darkness
Northern Desert (1F-8F)
MD Sky
Northern Desert (1F-8F)
Ranger: SoA
Peril Cliffs
PokéPark Wii
Cavern Zone, Lava Zone
Ranger: GS
Wireless Tower
Generation V
Rumble Blast
Canyon: Volcanic Slope
Conquest
Cragspur, Valora
Rumble U
Model Train Room: Working Gears
Generation VI
Battle Trozei
Pitch-Black Cavern: Stage 2
Shuffle
Roseus Center: Stage 261
Rumble World
Distortion Land: Withered Cemetery (All Areas)


Held items

Game Held Item(s)
Ruby Sapphire   Hard Stone (5%)
Emerald
Diamond Pearl   Hard Stone (5%)
Platinum   Hard Stone (5%)
HeartGold SoulSilver   Hard Stone (5%)
Black White   Hard Stone (5%)
Black 2 White 2   Hard Stone (5%)
X Y   Hard Stone (5%)

Stats

Base stats

Stat Range
At Lv. 50 At Lv. 100
50
110 - 157 210 - 304
70
67 - 134 130 - 262
100
94 - 167 184 - 328
40
40 - 101 76 - 196
40
40 - 101 76 - 196
30
31 - 90 58 - 174
Total:
330
Other Pokémon with this total
  • Minimum stats are calculated with 0 EVs, IVs of 0, and (if applicable) a hindering nature.
  • Maximum stats are calculated with 252 EVs, IVs of 31, and (if applicable) a helpful nature.

Pokéathlon stats

Speed
3/3 ★★★
Power
4/4 ★★★★
Skill
2/3 ★★
Stamina
3/3 ★★★
Jump
2/2 ★★
Total
14/15 ★★


Type effectiveness

Under normal battle conditions in Generation IX, this Pokémon is:
Damaged
normally by:
Normal ¼×
Fighting
Flying ¼×
Poison
Ground
Rock ½×
Bug ½×
Ghost
Steel
Fire
Water
Grass
Electric
Psychic ½×
Ice ½×
Dragon ½×
Dark
Fairy ½×
None
Weak to:
Normal ¼×
Fighting
Flying ¼×
Poison
Ground
Rock ½×
Bug ½×
Ghost
Steel
Fire
Water
Grass
Electric
Psychic ½×
Ice ½×
Dragon ½×
Dark
Fairy ½×
None
Immune to:
Normal ¼×
Fighting
Flying ¼×
Poison
Ground
Rock ½×
Bug ½×
Ghost
Steel
Fire
Water
Grass
Electric
Psychic ½×
Ice ½×
Dragon ½×
Dark
Fairy ½×
None
Resistant to:
Normal ¼×
Fighting
Flying ¼×
Poison
Ground
Rock ½×
Bug ½×
Ghost
Steel
Fire
Water
Grass
Electric
Psychic ½×
Ice ½×
Dragon ½×
Dark
Fairy ½×
None
Notes:

Learnset

By leveling up

Generation VII
Other generations:
III - IV - V - VI - VIII - IX
 Level   Move   Type   Cat.   Pwr.   Acc.   PP
011 Tackle Normal Physical 04040 100100% 35
011 Harden Normal Status 0000 —% 30
044 Mud-Slap Ground Special 02020 100100% 10
077 Headbutt Normal Physical 07070 100100% 15
1010 Metal Claw Steel Physical 05050 09595% 35
1313 Rock Tomb Rock Physical 06060 09595% 15
1616 Protect Normal Status 0000 —% 10
1919 Roar Normal Status 0000 —% 20
2222 Iron Head Steel Physical 08080 100100% 15
2525 Rock Slide Rock Physical 07575 09090% 10
2828 Take Down Normal Physical 09090 08585% 20
3131 Metal Sound Steel Status 0000 08585% 40
3434 Iron Tail Steel Physical 100100 07575% 15
3737 Iron Defense Steel Status 0000 —% 15
4040 Double-Edge Normal Physical 120120 100100% 15
4343 Autotomize Steel Status 0000 —% 15
4646 Heavy Slam Steel Physical 0000 100100% 10
4949 Metal Burst Steel Physical 0000 100100% 10
  • Bold indicates a move that gets STAB when used by Aron
  • Italic indicates a move that gets STAB only when used by an evolution of Aron
  • Click on the generation numbers at the top to see level-up moves from other generations

By TM/HM

Generation VII
Other generations:
III - IV - V - VI - VIII - IX
   TM   Move   Type   Cat.   Pwr.   Acc.   PP 
TM05  TM05 Roar Normal Status 0000 —}}—% 20
TM06  TM06 Toxic Poison Status 0000 090}}90% 10
TM10  TM10 Hidden Power Normal Special 06060 100}}100% 15
TM11  TM11 Sunny Day Fire Status 0000 —}}—% 5
TM17  TM17 Protect Normal Status 0000 —}}—% 10
TM18  TM18 Rain Dance Water Status 0000 —}}—% 5
TM21  TM21 Frustration Normal Physical 0000 100}}100% 20
TM26  TM26 Earthquake Ground Physical 100100 100}}100% 10
TM27  TM27 Return Normal Physical 0000 100}}100% 20
TM32  TM32 Double Team Normal Status 0000 —}}—% 15
TM37  TM37 Sandstorm Rock Status 0000 —}}—% 10
TM39  TM39 Rock Tomb Rock Physical 06060 095}}95% 15
TM40  TM40 Aerial Ace Flying Physical 06060 —}}—% 20
TM42  TM42 Facade Normal Physical 07070 100}}100% 20
TM44  TM44 Rest Psychic Status 0000 —}}—% 10
TM45  TM45 Attract Normal Status 0000 100}}100% 15
TM48  TM48 Round Normal Special 06060 100}}100% 15
TM65  TM65 Shadow Claw Ghost Physical 07070 100}}100% 15
TM69  TM69 Rock Polish Rock Status 0000 —}}—% 20
TM78  TM78 Bulldoze Ground Physical 06060 100}}100% 20
TM80  TM80 Rock Slide Rock Physical 07575 090}}90% 10
TM87  TM87 Swagger Normal Status 0000 085}}85% 15
TM88  TM88 Sleep Talk Normal Status 0000 —}}—% 10
TM90  TM90 Substitute Normal Status 0000 —}}—% 10
XTM100  TM100 Confide Normal Status 0000 —}}—% 20
  • Bold indicates a move that gets STAB when used by Aron
  • Italic indicates a move that gets STAB only when used by an evolution of Aron
  • Click on the generation numbers at the top to see TM moves from other generations

By breeding

Generation VII
Other generations:
III - IV - V - VI - VIII - IX
 Parent   Move   Type   Cat.   Pwr.   Acc.   PP 
Body Slam Normal Physical 85 100% 15
Curse Ghost Status —% 10
Dragon Rush Dragon Physical 100 75% 10
Endeavor Normal Physical 100% 5
Head Smash Rock Physical 150 80% 5
Iron Head Steel Physical 80 100% 15
Reversal* Fighting Physical 100% 15
Screech Normal Status 85% 40
Smelling Salts* Normal Physical 70 100% 10
Stealth Rock Rock Status —% 20
Stomp Normal Physical 65 100% 20
Superpower Fighting Physical 120 100% 5
  • Moves marked with an asterisk (*) must be chain bred onto Aron in Generation VII
  • Moves marked with a double dagger (‡) can only be bred from a Pokémon who learned the move in an earlier generation.
  • Moves marked with a superscript game abbreviation can only be bred onto Aron in that game.
  • Bold indicates a move that gets STAB when used by Aron
  • Italic indicates a move that gets STAB only when used by an evolution of Aron
  • Click on the generation numbers at the top to see Egg moves from other generations

By tutoring

Generation VII
Other generations:
III - IV - V - VI - VIII - IX
 Game   Move   Type   Cat.   Pwr.   Acc.   PP 
This Pokémon learns no moves by tutoring.
  • A black or white abbreviation in a colored box indicates that Aron can be tutored the move in that game
  • A colored abbreviation in a white box indicates that Aron cannot be tutored the move in that game
  • Bold indicates a move that gets STAB when used by Aron
  • Italic indicates a move that gets STAB only when used by an evolution of Aron
  • Click on the generation numbers at the top to see Move Tutor moves from other generations

TCG-only moves

Move Card
Flail Aron (EX Crystal Guardians 44)

Side game data

Pokémon Pinball RS
   
Acquisition: Hatch
Pokémon Trozei!
 
Rarity: Common
Pokémon Mystery Dungeon
Red Rescue Team and Blue Rescue Team
Body size: 1
Recruit rate: 7.8%
Friend Area: Mt. Cleft
Phrases
51%-100% HP I grow big on a diet of iron!
26%-50% HP Only half my health is left...
1%-25% HP I'm not up to it... I don't have any energy left...
Level up I leveled up! I wish I had more iron to eat!
Pokémon Mystery Dungeon
Explorers of Time, Explorers of Darkness, and Explorers of Sky
  Body size: 1
Recruit rate: 6.4%
IQ group: E
Pokémon Ranger: Shadows of Almia
Group:
Steel
Poké Assist:  
Steel
Field move:  
(Tackle ×1)
Browser entry R-000
It rams with its iron head to attack.
Pokémon Ranger: Guardian Signs
Group:
Steel
Poké Assist:
(present)
 
Steel
Field move:
(present)
 
(Tackle ×1)
Poké Assist:
(past)
 
Steel
Field move:
(past)
 
(Tackle ×1)
Browser entry [[List of Pokémon by Oblivia Browser number|]]
It launches an iron ball to attack.
Pokémon Rumble Blast
Attack ●●
Defense ●●●
Speed ●●●
PokéPark Wii: Pikachu's Adventure
  PokéPark Pad entry:
Aron often plays in the Cavern Zone. He adores iron. He'll happily eat anything made out of iron!
Pokémon Conquest
  HP: ★★ Move: Metal Claw
Attack: ★★ Ability 1: Sturdy
Ability 2: Bodyguard
Ability 3: Run Up
Defense: ★★★
Speed:
Evolves into Lairon when its Defense is 83 or higher
Range: 3 Perfect Links: Katsu, Tadatsugu, and Toku
Pokémon Battle Trozei
Steel
Attack Power: ★★★★

 

Pokémon Shuffle
 
Steel
  Attack Power: 50 - 70   0

#391
 

Rock Break
Destroys one breakable-rock disruption without fail.


Evolution

 
Unevolved
Aron
 Steel  Rock 
 
Level 32
 
First evolution
Lairon
 Steel  Rock 
 
Level 42
 
Second evolution
Aggron
 Steel  Rock 


Sprites

This Pokémon was unavailable prior to Generation III.
Generation III
Ruby Sapphire Emerald FireRed LeafGreen
           
           
Front Back Front Back Front Back
Generation IV
Diamond Pearl Platinum HeartGold SoulSilver
           
           
Front Back Front Back Front Back
Generation V
Black White Black 2 White 2
       
       
Front Back Front Back
Generation VI
X Y Omega Ruby Alpha Sapphire
Front Back Front Back
  For other sprites and images, please see Aron images on the Bulbagarden Archives.


Trivia

Origin

Aron may be based on the Bulgasari, a monster that eats iron in Korean legend.

Name origin

Aron may be a combination of armor and iron. It may also involve armadillo.

Cokodora is a combination of 子 ko (child) and Kodora (Lairon's Japanese name). Kodora may be a combination of 巨 ko (large) and dragon.

In other languages

Language Title Meaning
  Japanese ココドラ Cokodora From ko, dragon. Can also be taken as "Little Kodora"
  French Galekid From gallet and kid
  Spanish Aron Same as English name
  German Stollunior From Stahl, Stollen, and Junior
  Italian Aron Same as English name
  Korean 가보리 Gabori From 갑옷 gabot
  Mandarin Chinese 可可多拉 Kěkěduōlā Transliteration of its Japanese name
  Cantonese Chinese 可可多拉 Hóhódōlāai Mandarin-based transliteration of its Japanese name


Related articles

External links


  #303: Mawile
Pokémon
#305: Lairon  
  This Pokémon article is part of Project Pokédex, a Bulbapedia project that aims to write comprehensive articles on each Pokémon as a species.