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For Pokémon GO information on this species, see the game's section.
Aron #304: Aron
Pokémon
#306: Aggron Aggron
This article is about the species. For a specific instance of this species, see Lairon (disambiguation).
Lairon
Iron Armor Pokémon
コドラ
Kodora
#305
Lairon



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
90 (20.1%)
Breeding
Egg Group
Monster
Hatch time
8995 - 9251 steps
Height
2'11" 0.9 m
Lairon
0'0" 0 m
{{{form2}}}
0'0" 0 m
{{{form3}}}
0'0" 0 m
{{{form4}}}
Weight
264.6 lbs. 120.0 kg
Lairon
0 lbs. 0 kg
{{{form2}}}
0 lbs. 0 kg
{{{form3}}}
0 lbs. 0 kg
{{{form4}}}
Mega Stone
[[|]] [[|]]
Base experience yield
152
Gen. III-IV
Unknown
IV
151
V+
Leveling rate
Slow
EV yield
Total: 2
Lairon
0
HP
0
Atk
2
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 BodyUnknown.png
{{{form2}}}
Footprint
F305.png None.png
{{{form2}}}
Pokédex color
Gray
Base friendship
35
External Links

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

It evolves from Aron starting at level 32 and evolves into Aggron starting at level 42.

Contents

Biology

Lairon is a stocky, armored Pokémon with four short legs. Its body is dark gray, and its eyes are sky blue. Its back is covered with segments of iron armor, each with a high ridge and round dark holes on the sides. The sides of its lower jaw have several flat protrusions, and two teeth are visible in its mouth. There are two-pronged metal bands on its legs. The upper band is gray and the lower is silver.

Lairon smashes its steely body against others when battling over territory, and shows off its strength with the size of sparks it creates by ramming into rocks. It drinks nutritious mineral spring water and feeds on iron contained in rocks. It builds its nest on mountains where iron ore is buried, which results in it clashing with humans that are iron mining.

In the anime

Lairon in the anime

Major appearances

Lairon debuted in A Fan with a Plan, under the ownership of a Coordinator named Savannah. It reappeared in the following episode, where it was used in the Battle Stage of the Rubello Contest. Lairon defeated May's Bulbasaur but lost to Drew's Masquerain.

In Steeling Peace of Mind!, a Lairon was affected by Team Galactic's meddling on Iron Island. More appeared in the follow-up episode.

In A Pyramiding Rage!, Paul's Lairon battled Brandon's Regice, but was defeated quickly. Lairon was revealed to have evolved in Aggron by Familiarity Breeds Strategy!.

Minor appearances

A Lairon appeared in PK13.

A Coordinator's Laironn appeared in Deceit and Assist.

In Numero Uno Articuno, Noland's Lairon was living at the Battle Factory.

In Lucario and the Mystery of Mew, multiple Lairon were part of the feuding armies that were eventually placated by Sir Aaron in the past.

In Giratina and the Sky Warrior, a Lairon and its evolutionary relatives helped Ash and his friends stop a broken glacier. During the ending credits, they were eating the ruins of the Megarig.

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

In Tag Team Battle Inspiration!, Trevor took a picture of a Lairon.

In Meeting at Terminus Cave!, a Lairon was living inside Terminus Cave.

Pokédex entries

Episode Pokémon Source Entry
AG077 Lairon Ash's Pokédex Lairon, the Iron Armor Pokémon. Lairon is the evolved form of Aron. By drinking nutrient-rich spring water, it strengthens its steel body.
Episode Pokémon Source Entry
DP128 Lairon Dawn's Pokédex Lairon, the Iron Armor Pokémon. It digs up iron ore for food, and smashes its steely body up against others in battles over territory.

In the manga

In the Pokémon Adventures manga

Main article: Rono

In Mashing Makuhita, Rono, Sapphire's Aron, evolved into a Lairon before her challenge with Brawly in the Dewford Gym. Although he was her highest-level Pokémon, he failed to beat his Hariyama, but was put into good use against Matt, beating his Pokémon and injuring him badly enough that he was not taken to the Seafloor Cavern sometime later. He evolved into an Aggron on Mirage Island as a result of the training Sapphire underwent alongside Ruby.

The Battle Tower rented an Aron, which was stolen by Guile Hideout in The Final Battle VII.

A Lairon appeared in a fantasy in the X & Y chapter.

A Lairon appeared in Pinsir Changes.

In the Pokémon Battle Frontier manga

A Lairon appeared in Final Battle: Versus The Salon Maiden.

In the Pokémon + Nobunaga's Ambition ~ Ranse's Color Picture Scroll ~ manga

Multiple Lairon appeared in The Yellow Scroll: Hanbei vs Kanbei.

In the TCG

Main article: Lairon (TCG)

In the TFG

One Lairon figure has been released.

Game data

NPC appearances

Pokédex entries

This Pokémon was unavailable prior to Generation III.
Generation III Hoenn
#071
Kanto
#—
Ruby Lairon tempers its steel body by drinking highly nutritious mineral springwater until it is bloated. This Pokémon makes its nest close to springs of delicious water.
Sapphire Lairon feeds on iron contained in rocks and water. It makes its nest on mountains where iron ore is buried. As a result, the Pokémon often clashes with humans mining the iron ore.
Emerald When two Lairon meet in the wild, they fight for territory by bashing into each other with their steel bodies. The sound of their collision carries for miles.
FireRed It habitually shows off its strength with the size of sparks it creates by ramming its steel body into boulders.
LeafGreen
Generation IV Sinnoh
#—
Johto
#—
Diamond For food, it digs up iron ore. It smashes its steely body against others to fight over territory.
Pearl
Platinum
HeartGold It loves iron ore. Groups of them fight for territory by bashing one another with their steel bodies.
SoulSilver
Generation V Unova
B2W2: #167
Black For food, it digs up iron ore. It smashes its steely body against others to fight over territory.
White
Black 2 Lairon fight over territory, and when their steel bodies collide, sparks fly.
White 2
Generation VI Kalos
Mountain #100
Hoenn
#073
X It loves iron ore. Groups of them fight for territory by bashing one another with their steel bodies.
Y It habitually shows off its strength with the sparks it creates by ramming its steel body into boulders.
Omega Ruby Lairon tempers its steel body by drinking highly nutritious mineral springwater until it is bloated. This Pokémon makes its nest close to springs of delicious water.
Alpha Sapphire Lairon feeds on iron contained in rocks and water. It makes its nest on mountains where iron ore is buried. As a result, the Pokémon often clashes with humans mining the iron ore.
Generation VII Alola
#—
Kanto
#—
This Pokémon has no Pokédex entries in Generation VII.
Generation VIII Galar
#—
This Pokémon has no Pokédex entries in Generation VIII.

Game locations

This Pokémon was unavailable prior to Generation III.
Generation III
Ruby Sapphire
Victory Road
Emerald
Victory Road
FireRed LeafGreen
Trade
Colosseum
Trade
XD
Evolve Aron
Generation IV
Diamond
Evolve Aron
Pearl
Trade
Platinum
Evolve Aron
HeartGold SoulSilver
Safari Zone
Pal Park
Mountain
Generation V
Black
Trade
White
Evolve Aron
Black 2 White 2
Clay Tunnel, Underground Ruins
Generation VI
X
Route 18, Terminus Cave
Y
Trade
Omega Ruby Alpha Sapphire
Victory Road
Generation VII
Sun Moon
Trade
Ultra Sun Ultra Moon
Evolve Aron
Let's Go Pikachu Let's Go Eevee
Unobtainable
Generation VIII
Sword Shield
Unobtainable

In side games

This Pokémon was unavailable prior to Generation III.
Generation III
Pinball: R&S
Evolve Aron
Trozei!
Endless Level 28, Endless Level 34, Forever Level 77, Mr. Who's Den
MD Red MD Blue
Frosty Forest (7F-9F), Wish Cave (62F-64F), Joyous Tower (62F-64F), Oddity Cave (B13-B15)
Generation IV
MD Time MD Darkness
Northern Desert (9F-15F)
MD Sky
Northern Desert (9F-15F)
Ranger: SoA
Volcano Cave
Ranger: GS
Wireless Tower, Fire Temple
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 268
Rumble World
Distortion Land: Withered Cemetery (All Areas, Entrance Boss)
Generation VII
Rumble Rush
Jirachi Sea, Rayquaza Sea, Jirachi SeaFinal

Held items

Game Held Item(s)
Ruby Sapphire Hard Stone Hard Stone (1%)
Emerald
HeartGold SoulSilver Hard Stone Hard Stone (5%)
Black 2 White 2 Hard Stone Hard Stone (5%)
X Y Hard Stone Hard Stone (5%)

Stats

Base stats

Stat Range
At Lv. 50 At Lv. 100
60
120 - 167 230 - 324
90
85 - 156 166 - 306
140
130 - 211 256 - 416
50
49 - 112 94 - 218
50
49 - 112 94 - 218
40
40 - 101 76 - 196
Total:
430
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
2/3 ★★
Power
4/5 ★★★★
Skill
3/4 ★★★
Stamina
3/4 ★★★
Jump
2/2 ★★
Total
14/18 ★★

Type effectiveness

Under normal battle conditions in Generation VIII, 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

Generation VIII
Other generations:
III - IV - V - VI - VII
This Pokémon is unavailable within Generation VIII.
Click on the generation numbers above to see Lairon's learnsets from other generations.


TCG-only moves

Move Card
Magnitude Lairon (EX Ruby & Sapphire 37)

Side game data

Pokémon Pinball RS
PinRS305.png
Acquisition: Evolve
Pokémon Trozei!
Trozeiani305.png
Rarity: Rare
Pokémon Mystery Dungeon
Red Rescue Team and Blue Rescue Team
Body size: 1
Recruit rate: -19%
Friend Area: Mt. Cleft
Phrases
51%-100% HP Nothing alive could break through this steel armor!
26%-50% HP Hold up. I just have half my HP remaining.
1%-25% HP It's a grinding halt... I can't even make sparks fly...
Level up Yes! My level's up! My steel armor's hardness increased!
Pokémon Mystery Dungeon
Explorers of Time, Explorers of Darkness, and Explorers of Sky
MDP E 305.png Body size: 1
Recruit rate: 0.5%
IQ group: E
Pokémon Ranger: Shadows of Almia
Group:
Steel
Poké Assist: Steel PA.png
Steel
Field move: Tackle 2 field move.png
(Tackle ×2)
Browser entry R-132
It rams with its iron head to attack.
Pokémon Ranger: Guardian Signs
Group:
Steel
Poké Assist:
(present)
Steel Assist.png
Steel
Field move:
(present)
Tackle 2 field move.png
(Tackle ×2)
Poké Assist:
(past)
Steel Assist.png
Steel
Field move:
(past)
Tackle 1 field move.png
(Tackle ×1)
Browser entry R-121/N-095
It launches an iron ball to attack.
Pokémon Rumble Blast
Attack ●●●
Defense ●●●●
Speed ●●●
Pokémon Rumble Rush
Rush305Body.png Walking Speed: 1.25 seconds Base HP: 51
Base Attack: 76 Base Defense: 58 Base Speed: 60
Pokémon Conquest
PCP305.png HP: ★★ Move: Iron Head
Attack: ★★★ Ability 1: Sturdy
Ability 2: Bodyguard
Ability 3: Run Up
Defense: ★★★★
Speed: ★★
Evolves from Aron when its Defense is 83 or higher
Evolves into Aggron when its Defense is 130 or higher
Range: 3 Perfect Links: Katsu, Tadatsugu, and Toku
Pokémon Battle Trozei
Steel
Attack Power: ★★★★★

BT305.png

Pokémon Shuffle
None.png
Steel
None.png Attack Power: 60 - 105 Raise Max Level.png 5

#392
Shuffle305.png

Mega Boost
Fills the Mega Gauge of a Pokémon of the same type.


Pokémon GO
GO305.png Base Stamina: 155 Base Attack: 158 Base Defense: 198
Egg Distance: N/A Buddy Distance: 1 km Evolution Requirement: Aron Candy 100
Fast Attacks: Metal Claw, Iron Tail
Charged Attacks: Body Slam, Rock Slide, Heavy Slam

Evolution

304Aron.png
Unevolved
Aron
 Steel  Rock 
Rare Candy
Level 32
305Lairon.png
First evolution
Lairon
 Steel  Rock 
Rare Candy
Level 42
306Aggron.png
Second evolution
Aggron
 Steel  Rock 

Sprites

This Pokémon was unavailable prior to Generation III.
Generation III
Ruby Sapphire Emerald FireRed LeafGreen
Spr 3r 305.png Spr b 3r 305.png Spr 3e 305.png Spr b 3r 305.png Spr 3r 305.png Spr b 3r 305.png
Spr 3r 305 s.png Spr b 3r 305 s.png Spr 3e 305 s.png Spr b 3r 305 s.png Spr 3r 305 s.png Spr b 3r 305 s.png
Front Back Front Back Front Back
Generation IV
Diamond Pearl Platinum HeartGold SoulSilver
Spr 4d 305.png Spr b 4d 305.png Spr 4d 305.png Spr b 4d 305.png Spr 4d 305.png Spr b 4d 305.png
Spr 4d 305 s.png Spr b 4d 305 s.png Spr 4d 305 s.png Spr b 4d 305 s.png Spr 4d 305 s.png Spr b 4d 305 s.png
Front Back Front Back Front Back
Generation V
Black White Black 2 White 2
Spr 5b 305.png Spr b 5b 305.png Spr 5b 305.png Spr b 5b 305.png
Spr 5b 305 s.png Spr b 5b 305 s.png Spr 5b 305 s.png Spr b 5b 305 s.png
Front Back Front Back
Generation VI
X Y Omega Ruby Alpha Sapphire
Spr 6x 305.png Spr b 6x 305.png Spr 6x 305.png Spr b 6x 305.png
Spr 6x 305 s.png Spr b 6x 305 s.png Spr 6x 305 s.png Spr b 6x 305 s.png
Front Back Front Back
Generation VII
Sun Moon Ultra Sun Ultra Moon
Spr 7s 305.png Spr b 7s 305.png Spr 7s 305.png Spr b 7s 305.png
Spr 7s 305 s.png Spr b 7s 305 s.png Spr 7s 305 s.png Spr b 7s 305 s.png
Front Back Front Back
305MS6.png For other sprites and images, please see Lairon images on the Bulbagarden Archives.

Trivia

Origin

Lairon may be based on the Bulgasari, a monster that eats iron in Korean legend. Its draconic appearance was most likely inspired by how it appears in the film adaptation of the legend.

Lairon also has a similar body shape to the Placerias, a mammal-like synapsid from the Triassic period. As its Pokémon category suggests, its appearance may also be inspired by plate armours.

Name origin

Lairon may be a combination of lairy (slang for aggressive) or lair and iron.

Kodora may be a combination of 巨 ko (large) and dragon.

In other languages

Language Title Meaning
Japan Flag.png Japanese コドラ Kodora From ko and dragon
France Flag.png French Galegon From gallet and dragon
Spain Flag.png Spanish Lairon Same as English name
Germany Flag.png German Stollrak From Stollen, and Drache
Italy Flag.png Italian Lairon Same as English name
South Korea Flag.png Korean 갱도라 Gaengdora From 갱도 gaengdo and dragon
Hong Kong Flag.png Cantonese Chinese
China and Taiwan Flags.png Mandarin Chinese 可可多拉 Kěduōlā Transliteration of its Japanese name


Related articles

External links


Aron #304: Aron
Pokémon
#306: Aggron Aggron
Project Pokédex logo.png This Pokémon article is part of Project Pokédex, a Bulbapedia project that aims to write comprehensive articles on each Pokémon as a species.