Sprite

No. 0305 · Generation III · Hoenn

Lairon

The Iron Armor Pokémon

TL;DR. Lairon is a steel/rock-type Pokémon from Generation III. Base Stat Total: 430. 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.

Steel Rock

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.

Height0.9 m

Weight120.0 kg

AbilitiesSturdy, Rock Head

HiddenHeavy Metal

Base stats

Stat spread.

Total of 430. Higher peaks mean specialized roles, flat spreads favor versatility.

HP 60

Attack 90

Defense 140

Sp. Attack 50

Sp. Defense 50

Speed 40

Total430

430 base stat total, the 544th-highest of all 1025 Pokémon species and 86th among Steel-types.

140 base Defense, Lairon's strongest stat, ranking 15th of 132 Steel-types.

Rankings computed across all 1025 base-species Pokémon (Mega and Gigantamax forms excluded). Source: National Pokédex base stats.

Pokémon GO

Lairon in Pokémon GO.

Pokémon GO uses its own hand-tuned base stats, distinct from the main-series spread above. At a perfect 15/15/15, Lairon reaches 2,056 CP at level 40 and 2,352 CP as a best buddy.

GO Attack158

GO Defense198

GO Stamina155

Max CP (L40)2,056

Max CP (L50)2,324

Best buddy (L51)2,352

Raid catch CP 1,110–1,174 (L20). Weather boosted 1,388–1,468 (L25).

Run the numbers: CP & HP calculator · PvP IV optimizer · Catch CP calculator

Competitive

Lairon in competitive play.

Recommended builds and battle rankings for Lairon across the current metagames. In Pokémon GO it ranks #339 in the Great League.

Pokémon GO Battle League

Great League #339 80.9 score

Ultra League #565 70.5 score

Build around it: GO PvP IV optimizer · Team builder · Ask Dia

Movesets via Smogon, GO ranks via PvPoke. Updated 2026-06-01.

Quick answers

Common questions about Lairon.

Direct, sourced answers to the most-asked questions about Lairon, each computed straight from its Pokédex data.

What type is Lairon?

Lairon is a Steel/Rock-type Pokémon. Dual-typing stacks weaknesses and resistances. see the full matchup table below.

What is Lairon weak to?

Lairon takes 4× damage from Fighting, Ground. its biggest defensive liability. It also takes 2× damage from Water.

What is Lairon resistant to?

Lairon is immune to Poison. It also resists Ice, Psychic, Bug, Rock, Dragon, Fairy, Normal, Flying.

How does Lairon evolve?

Lairon evolves from Aron (Level 32). Lairon evolves into Aggron (Level 42).

What generation is Lairon from?

Lairon was introduced in Generation III (the Hoenn region). Its Pokédex number is #0305.

What are Lairon's base stats?

Lairon has HP 60, Attack 90, Defense 140, Special Attack 50, Special Defense 50, and Speed 40. Total base stat total: 430.

What are Lairon's abilities?

Lairon can have the abilities Sturdy, Rock Head, plus the Hidden Ability Heavy Metal.

Is Lairon legendary or mythical?

No. Lairon is a regular Pokémon, not classified as Legendary or Mythical.

What is Lairon's best stat?

Lairon's highest base stat is Defense at 140, which ranks 15th of 132 Steel-type Pokémon.

Is Lairon good?

Lairon has a base stat total of 430, the 544th-highest of all 1025 Pokémon species and 86th among Steel-types. That is a modest total, typical of an unevolved or utility Pokémon.

See the full Q&A page for Lairon →

Sprites · Sound