aron #304
Type Matchups
Weak to (2x damage):
Resistant to (½x damage):
Immune to (0x damage):
aron
Generation III · #0304 — Iron Armor Pokémon
Aron, the Iron Armor Pokémon, is a dual-type Steel and Rock Pokémon that made its debut in Generation III as National Pokédex entry #304. This diminutive creature stands just 0.4 meters tall but weighs a substantial 60 kilograms, reflecting its dense metallic composition. Despite its small stature, Aron possesses remarkable defensive capabilities with a base Defense stat of 100, making it one of the most defensively oriented Pokémon available in the early stages of gameplay. As the first in a three-stage evolutionary line, Aron evolves into Lairon at level 32 and eventually into the powerful Aggron at level 42, representing a comprehensive defensive wall strategy for trainers who value durability over immediate offensive power.
Base Stats
Height
0.4m
Weight
60.0kg
Category
Iron Armor Pokémon
Gender
Male 50% / Female 50%
Color
gray
Shape
quadruped
Habitat
mountain
Abilities
Prevents being KOed from full HP, leaving 1 HP instead. Protects against the one-hit KO moves regardless of HP.
Protects against recoil damage.
Doubles the Pokémon's weight.
Aron Biology & Physical Characteristics
Aron's physiology is entirely defined by its steel armor plating, which covers its quadrupedal body in gray steel plates overlaid upon a black undercoat. The creature features four stubby legs that support its compact frame, with a distinctive large round head that serves as the primary location for its pale blue eyes and sensory openings. A single blunt spike protrudes from its back, serving both as a visual distinctive feature and potentially as a defensive mechanism. Throughout its entire body are small openings in the armor that accommodate its respiratory and sensory systems, with six notable openings visible on its head alone. Most remarkably, Aron feeds exclusively on iron ore that it excavates from mountain deposits, utilizing this raw material to construct and maintain its steel body. When Aron evolves into Lairon, it sheds its entire steel carapace and develops a new, more robust suit of armor, with the discarded exoskeleton being salvaged by humans for use in creating iron products—a relationship between Pokémon and human industry that has existed since ancient times.
Pokedex Numbers
Training
Breeding
Aron Breeding, Gender Ratio & Egg Groups
Aron exhibits a perfectly balanced gender ratio of fifty percent male to fifty percent female, making it equally likely to encounter either sex in the wild or during breeding endeavors. The species belongs to the Monster egg group, which it shares with many other reptilian and draconic Pokémon, providing players with moderate breeding compatibility options when attempting to produce Aron offspring or transfer moves between compatible species. Eggs containing Aron require thirty-five cycles to hatch, representing a standard hatching period that is neither particularly fast nor exceptionally slow. The base happiness value of Aron is notably lower than average at thirty-five, suggesting that newly caught or hatched individuals may require additional care and affection to reach optimal companionship levels. This lower base happiness value may reflect Aron's somewhat irascible nature as a mountain pest that has learned to be cautious around humans, though dedicated trainers can increase its friendship through consistent interaction, battle participation, and item-based happiness boosters. When breeding Aron, trainers should consider its Monster egg group classification when selecting compatible breeding partners to create specific move combinations or nature configurations.
Held Items
Sprites
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
tm01
black white
tm01
black 2 white 2
tm01
lets go pikachu lets go eevee
tm01
omega ruby alpha sapphire
tm01
x y
tm02
crystal
tm02
gold silver
tm03
crystal
tm03
gold silver
tm03
ruby sapphire
tm03
platinum
tm03
firered leafgreen
tm03
heartgold soulsilver
tm03
diamond pearl
tm03
emerald
tm03
xd
tm03
colosseum
tm04
gold silver
tm04
crystal
tm05
ruby sapphire
+581 more TMs/HMs
aron's Evolution Chain
Aron Evolution, Mega Evolution & Special Forms
Aron's evolutionary line represents a straightforward progression from a defensively-oriented juvenile form to increasingly powerful defensive tanks. The evolution into Lairon occurs at level 32, transforming Aron into a larger, more armored version of itself while maintaining the Steel and Rock typing. The final evolution into Aggron happens at level 42, where Aron achieves its complete form as a heavily armored, dinosaur-like Pokémon. Notably, Aggron received a Mega Evolution form introduced in Generation VI, which shifts its typing to pure Steel type and provides substantial stat boosts that enhance both its physical bulk and offensive capabilities. The Mega Evolution represents the pinnacle of Aron's armor development, creating a form that is nearly impenetrable while simultaneously capable of devastating physical attacks. This evolutionary trajectory makes the Aron line particularly valuable for trainers seeking a reliable defensive core that scales appropriately across different competitive formats and game difficulties.
Where to Find
granite cave
hoenn
+27 more
hoenn victory road
hoenn
+3 more
fuego ironworks
sinnoh
+5 more
mistralton cave
unova
+5 more
guidance chamber
unova
+5 more
Aron Behaviour and Natural Habitat
Aron is primarily a mountain-dwelling Pokémon that lives deep within rocky terrain where iron ore deposits are abundant. The creature spends most of its time burrowing through mountains in search of iron-rich sustenance, a behavior essential to maintaining its metallic body composition. However, this dietary requirement occasionally drives Aron to descend from its mountainous habitat in search of alternative iron sources, making it a notorious pest in populated areas. According to various Pokédex entries, Aron has been known to cause significant property damage by consuming bridges, railroad tracks, and even automobiles—treating destroyed vehicles as convenient meals that provide the iron necessary for body maintenance. The Pokémon's appetite is so formidable that despite its diminutive size, a single all-out charge from Aron can demolish even a heavy dump truck, demonstrating the force and density that its steel body can generate. This combination of strength and hunger makes Aron both dangerous and troublesome in human settlements, though its fundamental nature remains driven by basic survival instincts rather than malice.
Pokedex Entries
Generation III
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.
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.
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.
It eats iron to build its steel body. It is a pest that descends from mountains to eat bridges and train tracks.
Generation IV
It usually lives deep in mountains. However, hunger may drive it to eat railroad tracks and cars.
When it evolves, it sheds the steel carapace that covered its whole body and develops a new one.
Generation V
It usually lives deep in mountains. However, hunger may drive it to eat railroad tracks and cars.
In order to build up its steel body, it eats iron ore. This pesky Pokémon is known to eat railroad tracks.
Generation VI
It usually lives deep in mountains. However, hunger may drive it to eat railroad tracks and cars.
When it evolves, it sheds the steel carapace that covered its whole body and develops a new one.
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.
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 VIII
It eats iron ore—and sometimes railroad tracks— to build up the steel armor that protects its body.
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.
Aron Name Origin & Design Inspiration
The name Aron derives from the English word 'armor' combined with the 'on' suffix commonly found in Japanese Pokémon nomenclature, directly referencing its steel plating. In its original Japanese designation, Aron is known as Cokodora, which combines elements suggesting an armored creature of prehistoric proportions. The design itself draws inspiration from both a young armadillo or pangolin—creatures known for their protective plating—and the concept of a miniature iron golem or suit of armor given animate form. The color scheme of gray steel plating over a black body creates a striking visual contrast that emphasizes both its metallic nature and its distinctly mechanical appearance. The single blunt spike protruding from its back adds a touch of personality while suggesting defensive capability, and the large expressive eyes visible through openings in the armor give the otherwise mechanical creature an endearing quality. This design successfully communicates Aron's dual nature as both a natural creature that feeds on minerals and an almost mechanical being composed entirely of inorganic materials, making it visually distinct while thematically coherent within the Steel and Rock typing framework.
Learnable Moves
Aron can learn 74 moves:
Move | Type | Cat. | Power | Acc. | PP |
|---|---|---|---|---|---|
| aerial ace | flying | Physical | 60 | — | 20 |
| ancient power | rock | Special | 60 | 100 | 5 |
| attract | normal | Status | — | 100 | 15 |
| autotomize | steel | Status | — | — | 15 |
| body press | fighting | Physical | 80 | 100 | 10 |
| body slam | normal | Physical | 85 | 100 | 15 |
| bulldoze | ground | Physical | 60 | 100 | 20 |
| captivate | normal | Status | — | 100 | 20 |
| confide | normal | Status | — | — | 20 |
| curse | ghost | Status | — | — | 10 |
| cut | normal | Physical | 50 | 95 | 30 |
| defense curl | normal | Status | — | — | 40 |
| dig | ground | Physical | 80 | 100 | 10 |
| double team | normal | Status | — | — | 15 |
| double edge | normal | Physical | 120 | 100 | 15 |
| dragon rush | dragon | Physical | 100 | 75 | 10 |
| earth power | ground | Special | 90 | 100 | 10 |
| earthquake | ground | Physical | 100 | 100 | 10 |
| endeavor | normal | Physical | — | 100 | 5 |
| endure | normal | Status | — | — | 10 |
| facade | normal | Physical | 70 | 100 | 20 |
| frustration | normal | Physical | — | 100 | 20 |
| fury cutter | bug | Physical | 40 | 95 | 20 |
| harden | normal | Status | — | — | 30 |
| head smash | rock | Physical | 150 | 80 | 5 |
| headbutt | normal | Physical | 70 | 100 | 15 |
| heavy slam | steel | Physical | — | 100 | 10 |
| hidden power | normal | Special | 60 | 100 | 15 |
| hone claws | dark | Status | — | — | 15 |
| iron defense | steel | Status | — | — | 15 |
| iron head | steel | Physical | 80 | 100 | 15 |
| iron tail | steel | Physical | 100 | 75 | 15 |
| magnet rise | electric | Status | — | — | 10 |
| metal burst | steel | Physical | — | 100 | 10 |
| metal claw | steel | Physical | 50 | 95 | 35 |
| metal sound | steel | Status | — | 85 | 40 |
| mimic | normal | Status | — | — | 10 |
| mud slap | ground | Special | 20 | 100 | 10 |
| natural gift | normal | Physical | — | 100 | 15 |
| protect | normal | Status | — | — | 10 |
| rain dance | water | Status | — | — | 5 |
| rest | psychic | Status | — | — | 5 |
| return | normal | Physical | — | 100 | 20 |
| reversal | fighting | Physical | — | 100 | 15 |
| roar | normal | Status | — | — | 20 |
| rock polish | rock | Status | — | — | 20 |
| rock slide | rock | Physical | 75 | 90 | 10 |
| rock smash | fighting | Physical | 40 | 100 | 15 |
| rock tomb | rock | Physical | 60 | 95 | 15 |
| rollout | rock | Physical | 30 | 90 | 20 |
| round | normal | Special | 60 | 100 | 15 |
| sandstorm | rock | Status | — | — | 10 |
| screech | normal | Status | — | 85 | 40 |
| secret power | normal | Physical | 70 | 100 | 20 |
| shadow claw | ghost | Physical | 70 | 100 | 15 |
| shock wave | electric | Special | 60 | — | 20 |
| sleep talk | normal | Status | — | — | 10 |
| smelling salts | normal | Physical | 70 | 100 | 10 |
| snore | normal | Special | 50 | 100 | 15 |
| spite | ghost | Status | — | 100 | 10 |
| stealth rock | rock | Status | — | — | 20 |
| steel beam | steel | Special | 140 | 95 | 5 |
| steel roller | steel | Physical | 130 | 100 | 5 |
| stomp | normal | Physical | 65 | 100 | 20 |
| strength | normal | Physical | 80 | 100 | 15 |
| substitute | normal | Status | — | — | 10 |
| sunny day | fire | Status | — | — | 5 |
| superpower | fighting | Physical | 120 | 100 | 5 |
| swagger | normal | Status | — | 85 | 15 |
| tackle | normal | Physical | 40 | 100 | 35 |
| take down | normal | Physical | 90 | 85 | 20 |
| toxic | poison | Status | — | 90 | 10 |
| uproar | normal | Special | 90 | 100 | 10 |
| water pulse | water | Special | 60 | 100 | 20 |
Aron Competitive Battle Guide
In competitive Pokémon battling, Aron functions primarily as an entry-level wall Pokémon with exceptional bulk relative to its stage of evolution. Its base Defense stat of 100 is particularly notable for an unevolved Pokémon, providing immediate survivability against physical attacks without requiring evolutionary investment. However, its other base stats present significant limitations—an Attack stat of 70, Special Attack of only 40, and critically low Special Defense of 40 alongside a Speed stat of 30 make Aron highly specialized and somewhat vulnerable to special attacks. The ability Sturdy grants Aron the passive benefit of surviving a single hit that would otherwise cause fainting, leaving it with one health point instead, which provides strategic value in team compositions relying on survival tactics. The alternative ability Rock Head eliminates recoil damage from moves like Double-Edge, allowing for more aggressive strategies without health cost penalties. Its hidden ability Heavy Metal doubles the Pokémon's weight, which has limited utility in most competitive scenarios but can provide niche benefits in formats where weight-based moves are prominent. While Aron itself sees minimal use in high-level competitive play due to its limited movepool and modest offensive presence, its evolutionary descendants—particularly Aggron—serve as formidable competitive threats with significantly improved statistics and expanded strategic options.
Commonly Asked Questions About Aron
What type is Aron?
Aron is a steel and rock type Pokemon.
What does Aron evolve into?
Aron evolves into lairon, then into aggron.
What are Aron's weaknesses?
Aron is weak to fighting, ground and water type moves.
Where can I find Aron?
Aron can be found in granite cave (hoenn), hoenn victory road (hoenn) and fuego ironworks (sinnoh) and 2 other locations.
Aron Cultural Impact & Franchise History
Aron has maintained a consistent presence in Pokémon media since its introduction in Generation III, appearing in animated series episodes and serving as a memorable Pokédex entry that emphasizes the sometimes problematic relationship between Pokémon and human infrastructure. The concept of Aron eating bridges and railroad tracks captured player imagination and provided memorable flavor text that demonstrated how Pokémon behavior could have direct consequences for human society. The revelation that Aron's shed armor is salvaged for human use created an interesting ecological relationship where Pokémon and humans coexist in a symbiotic cycle of material exchange, distinguishing Aron from many other Pokémon whose interactions with humanity are less defined. This practical application of Pokémon remains one of the more grounded and interesting aspects of Aron's identity. While not achieving the widespread recognition of flagship Pokémon like Charizard or Pikachu, Aron has developed a dedicated fan base among players who appreciate defensive-oriented Pokémon and those seeking to raise Aggron as a team centerpiece. The species appears frequently in competitive team discussions and fan communities dedicated to Steel-type Pokémon, where it is recognized for providing foundational armor-based strategy concepts.
Where to Find Aron in Every Pokémon Game
Aron's availability varies significantly across different Pokémon games, though it has remained accessible in most mainline titles. In the original Generation III games—Pokémon Ruby and Sapphire—Aron appears as Pokédex #70 in the Hoenn regional list and can be encountered in mountainous areas of the Hoenn region. The creature reappears in subsequent generations with varying availability in different regions and specific locations, generally found in rocky or mountainous terrain consistent with its natural habitat preferences. Its capture rate of 180 indicates that Aron is moderately easy to catch compared to rare Pokémon, making it accessible to players without requiring specialized catching techniques or rare items. In more recent generations, Aron has been distributed across multiple regional Pokédexes, ensuring that players attempting to build Steel or Rock-type teams have reasonable opportunity to obtain one. Some games feature Aron in gift distributions or special events, while others require wild encounters in designated caves or mountain locations. The slow growth rate characteristic of Aron means that training it to its final evolution requires patience and consistent leveling, but the accessibility of the base form ensures that motivated players can always begin this evolutionary journey regardless of generation or version played.