Aron (Pokémon) - Bulbapedia

For Pokémon GO information on this species, see the game's section.
← #0303: Mawile	Pokémon	#0305: Lairon →
This article is about the species. For a specific instance of this species, see Aron (disambiguation).

AronIron Armor Pokémon ココドラCokodora #0304 Images on the Bulbagarden Archives
Type Steel Rock Unknown Unknown 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 35 cycles
Height 1'04" 0.4 m Aron 0'0" 0 m {{{form2}}} 0'0" 0 m {{{form3}}} 0'0" 0 m {{{form4}}} 0'0" 0 m {{{form5}}} 0'0" 0 m {{{form6}}} 0'0" 0 m {{{form7}}}	Weight 132.3 lbs. 60.0 kg Aron 0 lbs. 0 kg {{{form2}}} 0 lbs. 0 kg {{{form3}}} 0 lbs. 0 kg {{{form4}}} 0 lbs. 0 kg {{{form5}}} 0 lbs. 0 kg {{{form6}}} 0 lbs. 0 kg {{{form7}}}
Mega Stone [[|]] [[|]]
Base experience yield 96Gen. III-IV UnknownIV 66V+	Leveling rate Slow
EV yield Total: 1 Aron 0HP 0Atk 1Def 0Sp.Atk 0Sp.Def 0Speed 0HP 0Atk 0Def 0Sp.Atk 0Sp.Def 0Speed 0HP 0Atk 0Def 0Sp.Atk 0Sp.Def 0Speed 0HP 0Atk 0Def 0Sp.Atk 0Sp.Def 0Speed
Shape	Footprint {{{form2}}}
Pokédex color   Gray	Base friendship 35
External Links On Smogon Pokédex: Generation III Generation IV Generation V Generation VI Generation VII Generation VIII Generation IX Artwork on Bulbagarden Archives

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.

Contents

• 1 Biology
  • 1.1 Evolution
• 2 Game data
  • 2.1 NPC appearances
  • 2.2 Pokédex entries
  • 2.3 Game locations
    • 2.3.1 In side games
  • 2.4 Held items
  • 2.5 Stats
    • 2.5.1 Base stats
    • 2.5.2 Pokéathlon stats
  • 2.6 Type effectiveness
  • 2.7 Learnset
    • 2.7.1 By leveling up
    • 2.7.2 By TM
    • 2.7.3 TCG-only moves
  • 2.8 Side game data
  • 2.9 Evolution data
  • 2.10 Sprites
• 3 In animation
  • 3.1 Major appearances
  • 3.2 Minor appearances
  • 3.3 Pokédex entries
• 4 In the manga
  • 4.1 Ash & Pikachu
  • 4.2 Movie adaptations
  • 4.3 Pokémon Adventures
    • 4.3.1 Pokédex entries
  • 4.4 Pokémon + Nobunaga's Ambition ~ Ranse's Color Picture Scroll ~
• 5 In the TCG
• 6 Trivia
  • 6.1 Origin
    • 6.1.1 Name origin
• 7 In other languages
• 8 Related articles
• 9 External links

Biology

Aron is a quadrupedal Pokémon with four stubby legs and a large round head. Its body is black with plates of gray steel 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. People have been collecting Aron's shed armor since ancient times. With one all-out charge, it can demolish even a heavy dump truck. It lives on mountains. As mentioned in Pokémon Sleep, Aron has been observed eating an iron ore snack on rare occasions.

Evolution

Aron evolves into Lairon, which evolves into Aggron.

(For specifics on this Pokémon's Evolution in the games, refer to Game data→Evolution data.)

Unevolved Aron Steel  Rock

→

First Evolution Lairon Steel  Rock

→

Second Evolution Aggron Steel  Rock

Game data

NPC appearances

• Pokémon Pinball: Ruby & Sapphire: The EVO Mode banner features an Aron.

Pokédex entries

This Pokémon was unavailable prior to Generation III.
Generation III Hoenn #070 Kanto #— 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 Sinnoh #— Johto #— 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 Unova B2  W2 : #166 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 KalosMountain #099 Hoenn #072 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.
Generation VII Alola #— Kanto #— This Pokémon has no Pokédex entries in Generation VII.
Generation VIII GalarCrown Tundra #191 Sinnoh #— Hisui #— This Pokémon has no Pokédex entries in Legends: Arceus. Sword It eats iron ore—and sometimes railroad tracks— to build up the steel armor that protects its body. Shield When Aron evolves, its steel armor peels off. In ancient times, people would collect Aron's shed armor and make good use of it in their daily lives. Brilliant Diamond 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. Shining Pearl
Generation IX Paldea #— Kitakami #— Blueberry #— Lumiose #199 This Pokémon has no Pokédex entries in Pokémon Scarlet and Violet. Legends: Z-A When it evolves, it sheds the steel carapace that covered its whole body and develops a new one.

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 (tall grass in Rocky Beach with 24 Peak points) 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 CaveVictory Road (Horde Encounter)
Generation VII Sun Moon Trade Ultra Sun Ultra Moon Breed Aggron Let's Go Pikachu Let's Go Eevee Unobtainable
Generation VIII Sword Shield TradeVersion 1.3.0+ Expansion Pass Lakeside CaveBallimere Lake (Wanderer)Slippery Slope, Giant's Bed, Snowslide Slope, Frigid Sea, Ballimere Lake (Max Raid Battle) Brilliant Diamond Fuego Ironworks (Poké Radar)Grand Underground - Rocky Cave, Big Bluff Cavern, Whiteout Cave, Icy Cave, Glacial Cavern (After obtaining the National Pokédex) Shining Pearl Grand Underground - Rocky Cave, Big Bluff Cavern, Whiteout Cave, Icy Cave, Glacial Cavern (After obtaining the National Pokédex) Legends: Arceus Unobtainable
Generation IX Scarlet Violet Unobtainable Legends: Z-A Magenta District: Wild Zone 14

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 Rumble World Distortion Land: Withered Cemetery (All Areas)
Generation VII Rumble Rush Jirachi Sea, Rayquaza Sea, Jirachi SeaFinal
Generation VIII MD DX Mt. Steel (4F-8F), Buried Relic (17F-22F), Wish Cave (7F-10F), Purity Forest (8F-9F)Fainted Pokémon: Mt. Blaze, Murky Cave
Generation IX Sleep Greengrass Isle (from Great 2)(Events only)Old Gold Power Plant, Greengrass IsleExpert (from Basic 1)
Cross-Generation Shuffle Roseus Center: Stage 261

Held items

Games		Held items
Ruby	Sapphire	Hard Stone (5%)
Emerald
Diamond	Pearl
Platinum
HeartGold	SoulSilver
Black	White
Black 2	White 2
X	Y
Omega Ruby	Alpha Sapphire
Sword	Shield	Hard Stone (Expansion Pass required, 5%)
Brilliant Diamond	Shining Pearl	Hard Stone (5%)

Stats

Base stats

Stat		Range
		At Lv. 50	At Lv. 100
HP:50	110 - 157	210 - 304
Attack:70	67 - 134	130 - 262
Defense:100	94 - 167	184 - 328
Sp. Atk:40	40 - 101	76 - 196
Sp. Def:40	40 - 101	76 - 196
Speed: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:

Damagednormally by: Normal ¼× Fighting 4× Flying ¼× Poison 0× Ground 4× Rock ½× Bug ½× Ghost 1× Steel 1× Fire 1× Water 2× Grass 1× Electric 1× Psychic ½× Ice ½× Dragon ½× Dark 1× Fairy ½× None

Weak to: Normal ¼× Fighting 4× Flying ¼× Poison 0× Ground 4× Rock ½× Bug ½× Ghost 1× Steel 1× Fire 1× Water 2× Grass 1× Electric 1× Psychic ½× Ice ½× Dragon ½× Dark 1× Fairy ½× None

Immune to: Normal ¼× Fighting 4× Flying ¼× Poison 0× Ground 4× Rock ½× Bug ½× Ghost 1× Steel 1× Fire 1× Water 2× Grass 1× Electric 1× Psychic ½× Ice ½× Dragon ½× Dark 1× Fairy ½× None

Resistant to: Normal ¼× Fighting 4× Flying ¼× Poison 0× Ground 4× Rock ½× Bug ½× Ghost 1× Steel 1× Fire 1× Water 2× Grass 1× Electric 1× Psychic ½× Ice ½× Dragon ½× Dark 1× Fairy ½× None

Notes: If this Pokémon is given a Ring Target, the effectiveness of  Poison-type  moves is ½×. Prior to Generation VI, the effectiveness of  Dark-type  moves was ½×. Prior to Generation VI, the effectiveness of  Ghost-type  moves was ½×.

Learnset

Aron is available in Legends Z-A.

By leveling up

Generation IX Other generations: III - IV - V - VI - VII - VIII

Learn Plus  Move   Type   Cat.   Power   CD  1 10 Tackle Normal Physical 04040 4 1 10 Screech Normal Status 0000— 10 1 10 Harden Normal Status 0000— 6 7 10 Metal Claw Steel Physical 05050 6 8 11 Rock Tomb Rock Physical 06060 10 12 15 Roar Normal Status 0000— 6 16 19 Headbutt Normal Physical 07070 7 20 23 Protect Normal Status 0000— 15 24 27 Rock Slide Rock Physical 07575 7 28 31 Iron Head Steel Physical 08080 8 33 36 Metal Sound Steel Status 0000— 10 36 39 Take Down Normal Physical 09090 8 44 47 Iron Tail Steel Physical 100100 10 48 51 Iron Defense Steel Status 0000— 9 52 55 Heavy Slam Steel Physical 0000— 10 56 59 Double-Edge Normal Physical 120120 10 66 69 Head Smash Rock Physical 150150 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

Generation IX Other generations: III - IV - V - VI - VII - VIII

TM   Move   Type   Cat.   Pwr.   CD  TM001 TM001 Headbutt Normal Physical 07070 7 TM005 TM005 Roar Normal Status 0000— 6 TM012 TM012 Rock Slide Rock Physical 07575 7 TM017 TM017 Protect Normal Status 0000— 15 TM028 TM028 Dig Ground Physical 08080 12 TM033 TM033 Body Slam Normal Physical 08585 8 TM035 TM035 Endure Normal Status 0000— 12 TM036 TM036 Rock Tomb Rock Physical 06060 10 TM037 TM037 Stealth Rock Rock Status 0000— 10 TM046 TM046 Mud Shot Ground Special 05555 6 TM052 TM052 Earth Power Ground Special 09090 8 TM056 TM056 Double-Edge Normal Physical 120120 10 TM058 TM058 Iron Head Steel Physical 08080 8 TM061 TM061 Shadow Claw Ghost Physical 07070 7 TM069 TM069 Earthquake Ground Physical 100100 10 TM078 TM078 Bulldoze Ground Physical 06060 6 TM080 TM080 Iron Defense Steel Status 0000— 9 TM085 TM085 Substitute Normal Status 0000— 10 TM087 TM087 Iron Tail Steel Physical 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 or an alternate form of Aron Click on the generation numbers at the top to see TM 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 DungeonRed 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 DungeonExplorers of Time, Explorers of Darkness, and Explorers of Sky Body size: 1 Recruit rate: 6.4% IQ group: E
Pokémon Super Mystery Dungeon Body size: Standard (1 tile) How to Recruit: Talk to in Noe Town Connected to: Kadabra, Hippopotas (♂) Connection Orb Set: 8 Phrases Normal Iron is yummy, isn't it? ♪ What? It's not food? Are you serious?! Low HP (< 50%) My carapace is about to slough off…
Pokémon Ranger: Shadows of Almia Group: Steel Poké Assist: Steel Field move: (Tackle ×1) Browser entry R-131 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 R-120/N-094 It launches an iron ball to attack.
Pokémon Rumble Blast Attack ●● Defense ●●● Speed ●●●
Pokémon Rumble Rush Walking Speed: 1.55 seconds Base HP: 48 Base Attack: 70 Base Defense: 53 Base Speed: 60
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: SturdyAbility 2: BodyguardAbility 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 - 100 5 #391 Rock Break Destroys one breakable-rock disruption without fail.
Pokémon GO Base HP: 137 Base Attack: 121 Base Defense: 141 Egg Distance: N/A Buddy Distance: 1 km Evolution Requirement: 25 Fast Attacks: Tackle, Metal Claw, Metal Sound* Charged Attacks: Iron Head, Rock Tomb, Body Slam, Frustration, Return
Pokémon Sleep Sleep type: Slumbering Pokémon type: Steel Points to befriend: 5 Specialty: Ingredients Berry:Belue Berry ×1 Primary ingredient:Bean Sausage ×2 Possible ingredients: Bean Sausage Rousing Coffee Greengrass Soybeans Main skill: Charge Energy S Base carry limit: 10 Restores 12 Energy to the user. Evolution requirements: Aron Candy ×40, Lv. 24 This Pokémon's body is covered in steel armor. To make its body, Aron feeds on iron ore that it digs from mountains. On rare occasions, you can spot one that has fallen asleep while eating an iron ore snack. Face-Scratching Sleep Stretched Sleep Iron-Eating Sleep Atop-Belly Sleep ★★★★★ ★★★★★ ★★★★★ ★★★★★

Evolution data

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
Generation VII Sun Moon Ultra Sun Ultra Moon Front Back Front Back
Generation VIII Sword Shield
This Pokémon is unavailable in Generation IX.
Cross-Generation HOME

For other sprites and images, please see Aron images on the Bulbagarden Archives.

In animation

Major appearances

Multiple Aron debuted 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 owned one, helped them pass through the cave. Steven's Aron briefly reappeared in Mega Evolution Special II.

Minor appearances

An Aron appeared in a fantasy in Gone Corphishin'.

A Trainer's Aron appeared in Delcatty Got Your Tongue.

In A Double Dilemma, an Aron was living at North Petalburg.

An Aron appeared in A Fan with a Plan.

An Aron appeared in PK13.

In Off The Unbeaten Path!, an Aron was in a field with an Azurill, Igglybuff, Smoochum, and Chikorita.

In Giratina and the Sky Warrior, an Aron and its evolved forms helped Ash and his friends stop a broken glacier. During the ending credits, they were eating the ruins of the Megarig.

In Steeling Peace of Mind! and Saving the World From Ruins!, multiple Aron were affected by Team Galactic's meddling on Iron Island.

In Genesect and the Legend Awakened, multiple Aron were living at Pokémon Hills.

An Aron appeared in BWS01.

An Aron appeared in Mega Evolution Special II.

In Volcanion and the Mechanical Marvel, a wild Aron was living at the 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

Ash & Pikachu

An Aron appears in a flashback in A Pokémon Battle Against An Entire Family?!, under the ownership of the Winstrate family.

Movie adaptations

An Aron appeared in the manga adaptation of Volcanion and the Mechanical Marvel as a resident of the Nebel Plateau.

Pokémon Adventures

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.

An Aron appeared in a fantasy in Heracross Transforms.

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.*

Pokémon + Nobunaga's Ambition ~ Ranse's Color Picture Scroll ~

An Aron appeared in PNA2.

In the TCG

Main article: Aron (TCG)

Trivia

• The back of Aron's head was changed from black in Generation VI to metallic gray in Generation VII. This makes it one of two Pokémon to have its model changed between these generations, the other being Glameow.

Origin

Aron seems to be based on the Bulgasari, a monster that eats iron in Korean legend, and a dinosaur from the family Nodosauridae. As its Pokémon category suggests, its appearance may also be inspired by plate armours.

Name origin

Aron may be a combination of armor and iron.

Cokodora may be a combination of 坑道 kōdō (mining tunnel), 小 ko (small), 子 ko (child), and dragon or コドラ Kodora (Lairon).

In other languages

Language Title Meaning Japanese ココドラ Cokodora From 小 ko, 子 ko, 坑道 kōdō, and dragon or コドラ Kodora French Galekid From galet and kid Spanish Aron Same as English name German Stollunior From Stollen and Junior Italian Aron Same as English name Korean 가보리 Gabori From 갑옷 gabot Mandarin Chinese 可可多拉 Kěkěduōlā Transcription of Japanese name Cantonese Chinese 可可多拉 Hóhódōlāai Mandarin-based transcription of Japanese name

More languages Hindi आइरोबिल Irobill From iron and बिल bill Russian Арон Aron Transcription of English name Thai โคโคโดรา Khokhodora Transcription of Japanese name

Related articles

• Rono

External links

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Pokémon

#0305: Lairon →

This Pokémon article is part of Project Pokédex, a Bulbapedia project that aims to write comprehensive articles on each Pokémon species, as well as Pokémon groups and forms.