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#0305lairon
#0307meditite
aggron

On this page

  1. 01Biology & Appearance
  2. 02Behaviour & Habitat
  3. 03Evolution & Mega Evolution
  4. 04Name Origin & Design
  5. 05Breeding & Gender
  6. 06Competitive Guide
  7. 07Cultural Impact
  8. 08Where to Find Aggron

aggron #306

Steel
Rock

Type Matchups

Weak to (2x damage):

Fighting
Ground
Water

Resistant to (½x damage):

Normal
Flying
Rock
Bug
Psychic
Ice
Dragon
Fairy

Immune to (0x damage):

Poison

aggron

Generation III · #0306 — Iron Armor Pokémon

Aggron, known as the Iron Armor Pokémon, is a dual-type Steel and Rock Pokémon that represents the final evolution in the Aron evolutionary line, which begins in Generation III. With a National Pokédex number of 306, Aggron stands as an imposing creature reaching 2.1 meters in height and weighing a substantial 360 kilograms. This massive Pokémon evolves from Lairon starting at level 42 and serves as a powerful defensive wall in competitive and casual gameplay alike. Its base stat total of 530 points heavily favors defense, with an astounding base Defense stat of 180, making it one of the most defensively oriented non-legendary Pokémon in the game. Aggron's combination of types, abilities, and stat distribution has secured its position as a respected and frequently used Pokémon across multiple generations of games.

Base Stats

HP70
Attack110
Defense180
Sp. Atk60
Sp. Def60
Speed50
Total530
Height

2.1m

Weight

360.0kg

Category

Iron Armor Pokémon

Gender

Male 50% / Female 50%

Color

gray

Shape

upright

Habitat

mountain

Abilities
Sturdy

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 MetalHidden

Doubles the Pokémon's weight.

Aggron Biology & Physical Characteristics

Aggron is a large, bipedal Pokémon with a distinctly dinosaur-like appearance, most notably resembling creatures from the Ceratopsidae family like Triceratops combined with characteristics of the armored Ankylosaurus. Its body is encased in a crusty, highly durable gray exoskeleton adorned with plates of silver armor that reflect its Steel-type nature. The creature's most distinctive features are the two pairs of holes on its head, with curved, pointed horns protruding from the foremost holes—these horns are sharp enough to perforate thick iron sheets and grow longer throughout the Pokémon's lifetime, serving as a natural indicator of its age. Its forehead plating extends past its upper jaw in a small point, while sky-blue eyes and nostril-like holes mark its face. The body is further reinforced with gray-silver bands on its arms and legs, wide blunt spikes on its shoulders, and claws on both its hands and feet. Aggron's internal composition contains a high concentration of iron, making it a truly metallic creature. The Pokédex notes that the gouges and scars accumulated on Aggron's armor are worn with pride as mementos from its countless battles, with older Aggron bearing more extensive battle damage as proof of their combative history.

Pokedex Numbers

national#306
hoenn#72
updated unova#168
conquest gallery#151
kalos mountain#101
updated hoenn#74
crown tundra#193
lumiose city#201

Training

EV Yield3 Defense
Catch Rate45
Base Happiness35
Base Exp.239
Growth Rateslow

Breeding

Egg Groupsmonster
GenderMale 50% / Female 50%
Egg Cycles35 (9180 steps)

Aggron Breeding, Gender Ratio & Egg Groups

Aggron maintains a perfectly balanced gender ratio of 50% male and 50% female, allowing for equal breeding opportunities regardless of the trainer's preference. The species belongs to the Monster egg group, which encompasses a diverse collection of Pokémon typically characterized by their size, power, and often dinosaurian or beast-like appearance. The breeding process results in an Aron, the first stage of the evolutionary line, with an egg hatch counter of 35 cycles, translating to approximately 8,739 to 8,995 steps for the egg to hatch. Aggron exhibits a slow growth rate, meaning it requires substantially more experience points to level up compared to Pokémon with medium or fast growth rates, making the journey from Aron through Lairon to Aggron a lengthy but rewarding endeavor. The base happiness of Aggron is notably low at 35, reflecting the species' naturally aggressive and independent temperament. This lower happiness value makes raising Aggron from an egg or catching one in the wild somewhat more challenging for trainers seeking to quickly build affection, though consistent care and positive interactions gradually increase the Pokémon's loyalty and happiness over time.

Held Items

Hard Stone
ruby5%
Hard Stone
sapphire5%
Hard Stone
emerald5%
Hard Stone
firered5%
Hard Stone
leafgreen5%
Hard Stone
diamond5%
Hard Stone
pearl5%
Hard Stone
platinum5%
Hard Stone
heartgold5%
Hard Stone
soulsilver5%
Hard Stone
black5%
Hard Stone
white5%
Hard Stone
black 25%
Hard Stone
white 25%
Hard Stone
x5%
Hard Stone
y5%
Hard Stone
omega ruby5%
Hard Stone
alpha sapphire5%
Hard Stone
sun5%
Hard Stone
moon5%
Hard Stone
ultra sun5%
Hard Stone
ultra moon5%

Sprites

aggron Front
Front
aggron Back
Back
aggron Shiny Front
Shiny Front
aggron Shiny Back
Shiny Back
aggron Home
Home
aggron Home Shiny
Home Shiny
aggron Showdown
Showdown
aggron Showdown Shiny
Showdown Shiny

Held Items

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

hard-stone

type-enhancement

Held: Rock-Type moves from holder do 20% more damage.

Cost: 1000

TMs & HMs

tm00

sword shield

tm01

yellow

tm01

gold silver

tm01

crystal

tm01

red blue

tm01

platinum

tm01

emerald

tm01

diamond pearl

tm01

firered leafgreen

tm01

ruby sapphire

tm01

xd

tm01

colosseum

tm01

heartgold soulsilver

tm01

lets go pikachu lets go eevee

tm01

blue japan

tm01

red green japan

tm01

sword shield

tm02

emerald

tm02

crystal

tm02

firered leafgreen

+898 more TMs/HMs

aggron's Evolution Chain

aron

aron

#0304

Steel
Rock
lairon

lairon

#0305

Steel
Rock
aggron

aggron

#0306

Steel
Rock
aron

aron

#0304

Steel
Rock
lairon

lairon

#0305

Steel
Rock
aggron

aggron

#0306

Steel
Rock

Aggron Evolution, Mega Evolution & Special Forms

Aggron evolves from Lairon when the latter reaches level 42, completing the three-stage evolutionary line that begins with Aron. This final evolution grants Aggron its Steel and Rock typing along with a significant boost to its Attack stat (110) and especially its Defense stat (180), transforming it into one of the most defensively formidable Pokémon in the Hoenn region and beyond. In Generation VI, Aggron gained the ability to Mega Evolve using the Aggronite, transforming into Mega Aggron and increasing its height to 2.2 meters while gaining additional weight at 395 kilograms. Mega Aggron's most significant change is the loss of its Rock typing, becoming a pure Steel-type Pokémon—a unique distinction as it is the only Mega Evolution to lose a type upon transformation. This Mega Evolution further enhances Aggron's already impressive Defense stat to an extraordinary 230, while its Attack increases to 140, creating an even more powerful tank-like presence in battle. Mega Aggron's signature ability changes to Filter, which reduces the damage from super-effective moves, further cementing its role as an unkillable defensive wall. The Mega Evolution physically manifests as a more imposing, armor-plated version with enhanced proportions that emphasize its role as an impenetrable fortress.

Where to Find

poni plains

alola

ultra sunLv. 57-57 (100% chance)
ultra moonLv. 57-57 (100% chance)

Aggron Behaviour and Natural Habitat

Aggron exhibits fiercely territorial behavior, claiming an entire mountain as its exclusive domain and mercilessly attacking anything that dares to violate its environment. According to multiple Pokédex entries, this Pokémon vigilantly patrols its territory at all times, making it an exceptionally dangerous adversary for those who trespass. However, Aggron displays a surprisingly protective and nurturing side regarding its mountain habitat—if its territory is ravaged by a landslide or fire, Aggron will haul topsoil to damaged areas, plant trees, and meticulously restore its environment to its former beauty. This combination of aggressive territorial defense and environmental stewardship reveals a complex personality focused on preserving its claimed domain. While seeking iron for sustenance, Aggron digs tunnels by breaking through bedrock with its steel horns, demonstrating both its strength and its dietary requirements. The species maintains lower-than-average base happiness at 35, reflecting its aggressive and independent nature, though this does not diminish its capacity for loyalty to trainers who earn its respect.

Pokedex Entries

Generation III

ruby

AGGRON claims an entire mountain as its own territory. It mercilessly beats up anything that violates its environment. This POKéMON vigilantly patrols its territory at all times.

sapphire

AGGRON is surprisingly protective of its environment. If its mountain is ravaged by a landslide or a fire, this POKéMON will haul topsoil to the area, plant trees, and beautifully restore its own territory.

emerald

Its iron horns grow longer a little at a time. They are used to determine the AGGRON’s age. The gouges in its armor are worn with pride as mementos from battles.

fireredleafgreen

It claims a large mountain as its sole territory. It mercilessly thrashes those that violate its space.

Generation IV

diamondpearlplatinum

While seeking iron for food, it digs tunnels by breaking through bedrock with its steel horns.

heartgoldsoulsilver

You can tell its age by the length of its iron horns. It claims an entire mountain as its territory.

Generation V

blackwhite

While seeking iron for food, it digs tunnels by breaking through bedrock with its steel horns.

black 2white 2

It claims an entire mountain as its own. The more wounds it has, the more it has battled, so don’t take it lightly.

Generation VI

x

It claims an entire mountain as its own. The more wounds it has, the more it has battled, so don’t take it lightly.

y

While seeking iron for food, it digs tunnels by breaking through bedrock with its steel horns.

omega ruby

Aggron claims an entire mountain as its own territory. It mercilessly beats up anything that violates its environment. This Pokémon vigilantly patrols its territory at all times.

alpha sapphire

Aggron is protective of its environment. If its mountain is ravaged by a landslide or a fire, this Pokémon will haul topsoil to the area, plant trees, and beautifully restore its own territory.

Generation VIII

sword

Aggron has a horn sharp enough to perforate thick iron sheets. It brings down its opponents by ramming into them horn first.

shield

Long ago, there was a king who wore a helmet meant to resemble the head of an Aggron. He was trying to channel the Pokémon’s strength.

Aggron Name Origin & Design Inspiration

The Japanese name Bossgodora combines 'Boss,' suggesting leadership and dominance, with 'Godora,' likely derived from 'godzilla' or similar powerful creatures, emphasizing Aggron's imposing nature and territorial authority. The English name 'Aggron' itself appears to be a portmanteau of 'aggressive' and 'iron,' perfectly capturing the Pokémon's temperamental personality combined with its metallic composition. The design draws inspiration from multiple prehistoric creatures, primarily the Triceratops from the Ceratopsidae family, evident in the distinctive paired horns and dinosaur-like body structure. Additionally, elements of Ankylosaurus are incorporated through the armor plating and the protective, heavily-fortified aesthetic. The silver armor plates and steel-gray coloration directly reflect its Steel typing, while the rocky, weathered appearance of its exoskeleton complements its Rock typing. Historical references appear in the Pokédex entry mentioning a king who wore a helmet designed to resemble Aggron's head, attempting to channel the Pokémon's legendary strength and territorial power. This cultural reference adds depth to Aggron's design, positioning it not merely as a creature but as an entity worthy of emulation by human leaders seeking to embody its formidable qualities.

Learnable Moves

Aggron can learn 88 moves:

Move
Type
Cat.
Power
Acc.
PP
aerial aceflying
Physical
60—20
ancient powerrock
Special
601005
attractnormal
Status
—10015
blizzardice
Special
110705
body slamnormal
Physical
8510015
brick breakfighting
Physical
7510015
counterfighting
Physical
—10020
crunchdark
Physical
8010015
cutnormal
Physical
509530
defense curlnormal
Status
——40
digground
Physical
8010010
double teamnormal
Status
——15
double edgenormal
Physical
12010015
dragon clawdragon
Physical
8010015
dynamic punchfighting
Physical
100505
earthquakeground
Physical
10010010
endeavornormal
Physical
—1005
endurenormal
Status
——10
facadenormal
Physical
7010020
fire blastfire
Special
110855
fire punchfire
Physical
7510015
flamethrowerfire
Special
9010015
flingdark
Physical
—10010
focus punchfighting
Physical
15010020
frustrationnormal
Physical
—10020
fury cutterbug
Physical
409520
hardennormal
Status
——30
headbuttnormal
Physical
7010015
hidden powernormal
Special
6010015
hydro pumpwater
Special
110805
hyper beamnormal
Special
150905
ice beamice
Special
9010010
ice punchice
Physical
7510015
icy windice
Special
559515
iron defensesteel
Status
——15
iron tailsteel
Physical
1007515
low kickfighting
Physical
—10020
magnet riseelectric
Status
——10
mega kicknormal
Physical
120755
mega punchnormal
Physical
808520
metal burststeel
Physical
—10010
metal clawsteel
Physical
509535
metal soundsteel
Status
—8540
mimicnormal
Status
——10
mud slapground
Special
2010010
natural giftnormal
Physical
—10015
outragedragon
Physical
12010010
paybackdark
Physical
5010010
protectnormal
Status
——10
rain dancewater
Status
——5
restpsychic
Status
——5
returnnormal
Physical
—10020
reversalfighting
Physical
—10015
roarnormal
Status
——20
rock blastrock
Physical
259010
rock polishrock
Status
——20
rock sliderock
Physical
759010
rock smashfighting
Physical
4010015
rock tombrock
Physical
609515
rolloutrock
Physical
309020
sand tombground
Physical
358515
sandstormrock
Status
——10
scary facenormal
Status
—10010
screechnormal
Status
—8540
secret powernormal
Physical
7010020
seismic tossfighting
Physical
—10020
shock waveelectric
Special
60—20
sleep talknormal
Status
——10
snorenormal
Special
5010015
solar beamgrass
Special
12010010
spiteghost
Status
—10010
strengthnormal
Physical
8010015
substitutenormal
Status
——10
sunny dayfire
Status
——5
superpowerfighting
Physical
1201005
surfwater
Special
9010015
swaggernormal
Status
—8515
tacklenormal
Physical
4010035
take downnormal
Physical
908520
tauntdark
Status
—10020
thunderelectric
Special
1107010
thunder punchelectric
Physical
7510015
thunder waveelectric
Status
—9020
thunderboltelectric
Special
9010015
toxicpoison
Status
—9010
uproarnormal
Special
9010010
water pulsewater
Special
6010020
whirlpoolwater
Special
358515

Aggron Competitive Battle Guide

In competitive Pokémon battling, Aggron serves as one of the premier defensive walls available to trainers, with its exceptional Defense stat of 180 allowing it to withstand even super-effective physical attacks. The Sturdy ability, which prevents Aggron from being knocked out in a single hit and instead leaves it with 1 HP, combined with its Rock Head ability that negates recoil damage from moves like Double-Edge, makes Aggron an exceptionally durable tank in battle. Its hidden ability, Heavy Metal, doubles the Pokémon's weight, which can be strategically utilized or detrimental depending on the competitive format and opponent team composition. With a relatively modest Attack stat of 110 and particularly weak Special Attack and Special Defense stats of 60 each, Aggron functions best as a physical wall that uses moves emphasizing its bulk rather than offensive power, typically running a moveset focused on defense, status moves, or physical coverage moves. The low Speed stat of 50 means Aggron almost always moves last in turn order, but this is often irrelevant given its defensive prowess. Mega Aggron further elevates Aggron's competitive viability by increasing its Attack to 140, Defense to an unprecedented 230, and providing the Filter ability that reduces damage from super-effective attacks, making it capable of surviving hits that would obliterate most other Pokémon.

Commonly Asked Questions About Aggron

What type is Aggron?

Aggron is a steel and rock type Pokemon.

What does Aggron evolve from?

Aggron evolved from lairon that evolved from aron.

What are Aggron's weaknesses?

Aggron is weak to fighting, ground and water type moves.

Where can I find Aggron?

Aggron can be found in poni plains (alola).

Aggron Cultural Impact & Franchise History

Aggron has maintained a consistent presence in Pokémon popular culture since its introduction in Generation III, establishing itself as an iconic representation of raw defensive power and territorial majesty. The Pokédex entry referencing a historical king who wore a helmet resembling Aggron's head to channel its strength has inspired numerous fan theories and creative interpretations exploring the connection between leadership, power, and the natural world. In the anime series, Aggron has appeared in various capacities, though it remains less prominently featured than some other Pokémon, yet its appearances consistently portray it as a formidable and awe-inspiring creature worthy of respect. The species has generated considerable fan art and discussions within the Pokémon community, particularly among competitive players and those appreciating defensive-oriented team compositions. Trading card game representations of Aggron have also contributed to its cultural significance, with various Aggron cards released across multiple sets, some featuring impressive artwork that emphasizes the Pokémon's imposing stature and armored appearance. Aggron's role as an environmental steward in the Pokédex, actively restoring its habitat after damage, has resonated with environmentally-conscious fans and highlighted a more nuanced characterization beyond its aggressive territorial nature. The introduction of Mega Aggron further revitalized interest in the species within competitive circles and general fandom discussions.

Where to Find Aggron in Every Pokémon Game

Aggron's availability varies significantly across different Pokémon games, though it has been featured in most major releases since Generation III. In the original Ruby and Sapphire games, Aggron served as a native Pokémon of the Hoenn region with the local Pokédex number 0072, making it relatively accessible to players progressing through the main campaign. Subsequent generations have included Aggron in various games, including Black 2 and White 2 (local number 0168), X and Y (local number 0101 in Mountain Kalos), Omega Ruby and Alpha Sapphire (local number 0074), and more recent titles like The Crown Tundra expansion (local number 0193). The catch rate of 45 represents a moderate difficulty in capturing Aggron in the wild, requiring somewhat more effort than common Pokémon but considerably less than legendary creatures. Base experience yield of 239 points per defeated Aggron provides reasonable experience progression for trainers battling them in the wild or during trainer encounters. Additionally, players can obtain Aron at lower levels in many games, allowing them to raise and evolve the creature through natural progression without necessarily encountering a wild Aggron. The Aggronite Mega Stone, required for Mega Evolution in Generation VI onward, is typically distributed through postgame content or special events, ensuring that players who complete the main story can access Aggron's full potential through its Mega Evolution form.