Stats & Training
The stat bars tell the story: Defense carries everything and Speed's dead weight. But this Iron Armor Pokemon still yields 2 Defense EVs per fight on a slow 1.25M XP grind.
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.
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.
Lairon Weakness
Fighting, Ground, and Water moves hit Lairon for super-effective damage. Fighting and Ground hits land at 4x, so they're the biggest threat. The upside? Poison-type moves can't touch it at all. It resists 9 types, so it can switch into a lot of moves safely. Lairon's physical bulk (base 140 Def) helps cushion physical weakness hits, but special attackers are the bigger threat.
| Damage | Types |
|---|---|
| 4x (Critical) | Fighting, Ground |
| 2x (Weak) | Water |
| 0.5x (Resist) | Ice, Psychic, Bug, Rock, Ghost, Dragon, Dark |
| 0.25x (Resist) | Normal, Flying |
| 0x (Immune) | Poison |
- Dark and Steel types added — Fairy does not exist yet
- Moves are Physical or Special based on type, not per move
 Mudkip Water | D | |
Obtain MethodRoute 101 Gift Available Moves Moves
Damage vs Lairon View Mudkip builds →Surf 2x85-102%KO Water Gun 2x43-51% Mud-Slap 4x21-26% | ||
 Surskit BugWater | D | |
Obtain MethodRoute 102 Surfing | ||
 Wingull Water | D | |
 Nincada BugGround | D | |
 Geodude RockGround | C | |
 Makuhita Fighting | D | |
Available Moves Moves
Damage vs Lairon View Makuhita builds →Surf 2x35-42% Vital Throw 4x70-84% Arm Thrust 4x26-32% | ||
Mudkip Water | D | |
Obtain MethodRoute 101 Gift Available Moves Moves
Damage vs Lairon View Mudkip builds →Surf 2x79-95% Water Gun 2x39-47% Mud-Slap 4x23-28% | ||
Surskit BugWater | D | |
Obtain MethodRoute 102 Surfing | ||
Wingull Water | D | |
Geodude RockGround | C | |
Makuhita Fighting | D | |
Available Moves Moves
Damage vs Lairon View Makuhita builds →Surf 2x33-39% Vital Throw 4x67-81% Arm Thrust 4x22-27% | ||
Mudkip Water | D | |
Obtain MethodRoute 101 Gift Available Moves Moves
Damage vs Lairon View Mudkip builds →Surf 2x79-94% Water Gun 2x37-45% Mud-Slap 4x19-24% | ||
Surskit BugWater | D | |
Obtain MethodRoute 102 Surfing | ||
Wingull Water | D | |
 Trapinch Ground | C | |
Available Moves Moves
Damage vs Lairon View Trapinch builds →Dig 4x105-124%KO Rock Smash 4x37-44% Sand Tomb 4x49-59% | ||
 Numel FireGround | D | |
Available Moves Moves
Damage vs Lairon View Numel builds →Dig 4x74-88% Rock Smash 4x28-34% | ||
 Machop Fighting | D | |
Available Moves Moves
Damage vs Lairon View Machop builds →Focus Punch 4x161-190%KO Dig 4x62-73% Revenge 4x68-80% Karate Chop 4x62-73% | ||
Makuhita Fighting | D | |
Available Moves Moves
Damage vs Lairon View Makuhita builds →Focus Punch 4x130-154%KO Surf 2x30-37% Dig 4x49-59% Vital Throw 4x68-80% | ||
 Sandshrew Ground | D | |
Available Moves Moves
Damage vs Lairon View Sandshrew builds →Focus Punch 4x104-122%KO Dig 4x87-102%KO Rock Smash 4x33-39% | ||
Trapinch Ground | C | |
Available Moves Moves
Damage vs Lairon View Trapinch builds →Dig 4x105-124%KO Rock Smash 4x39-46% Sand Tomb 4x52-62% | ||
Numel FireGround | D | |
Available Moves Moves
Damage vs Lairon View Numel builds →Dig 4x76-90% Rock Smash 4x26-32% | ||
Machop Fighting | D | |
Available Moves Moves
Damage vs Lairon View Machop builds →Focus Punch 4x163-193%KO Dig 4x62-74% Vital Throw 4x82-97% Revenge 4x70-83% | ||
Makuhita Fighting | D | |
Available Moves Moves
Damage vs Lairon View Makuhita builds →Focus Punch 4x134-159%KO Surf 2x32-39% Dig 4x51-60% Vital Throw 4x64-76% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Lairon View Sandshrew builds →Focus Punch 4x105-124%KO Dig 4x87-103%KO Rock Smash 4x31-37% | ||
Trapinch Ground | C | |
Available Moves Moves
Damage vs Lairon View Trapinch builds →Dig 4x111-130%KO Rock Smash 4x40-48% Sand Tomb 4x49-59% | ||
Numel FireGround | D | |
Available Moves Moves
Damage vs Lairon View Numel builds →Dig 4x77-91% Rock Smash 4x29-35% | ||
Machop Fighting | D | |
Available Moves Moves
Damage vs Lairon View Machop builds →Focus Punch 4x166-196%KO Dig 4x62-74% Vital Throw 4x83-98% Revenge 4x72-85% | ||
Makuhita Fighting | D | |
Available Moves Moves
Damage vs Lairon View Makuhita builds →Focus Punch 4x133-157%KO Surf 2x30-37% Dig 4x51-61% Vital Throw 4x66-78% | ||
Sandshrew Ground | D | |
Available Moves Moves
Damage vs Lairon View Sandshrew builds →Focus Punch 4x103-122%KO Dig 4x88-104%KO Rock Smash 4x33-39% | ||
 Heracross BugFighting | B | |
Available Moves Moves
Damage vs Lairon View Heracross builds →Focus Punch 4x232-273%KO Dig 4x86-102%KO Brick Break 4x120-142%KO Rock Smash 4x69-82% | ||
Trapinch Ground | C | |
Available Moves Moves
Damage vs Lairon View Trapinch builds →Dig 4x106-125%KO Rock Smash 4x36-44% Sand Tomb 4x51-60% | ||
Numel FireGround | D | |
Available Moves Moves
Damage vs Lairon View Numel builds →Earthquake 4x93-109%KO Dig 4x74-87% Rock Smash 4x27-33% | ||
Machop Fighting | D | |
Available Moves Moves
Damage vs Lairon View Machop builds →Focus Punch 4x162-191%KO Cross Chop 4x111-131%KO Submission 4x93-109%KO Dig 4x62-73% | ||
Makuhita Fighting | D | |
Available Moves Moves
Damage vs Lairon View Makuhita builds →Focus Punch 4x134-158%KO Surf 2x31-36% Dig 4x49-58% Vital Throw 4x65-76% | ||
Trapinch Ground | C | |
Available Moves Moves
Damage vs Lairon View Trapinch builds →Earthquake 4x131-154%KO Dig 4x104-123%KO Rock Smash 4x38-44% Sand Tomb 4x52-62% | ||
Numel FireGround | D | |
Available Moves Moves
Damage vs Lairon View Numel builds →Earthquake 4x91-108%KO Dig 4x74-87% Rock Smash 4x26-31% | ||
 Phanpy Ground | D | |
Available Moves Moves
Damage vs Lairon View Phanpy builds →Earthquake 4x91-108%KO Rock Smash 4x26-31% | ||
Machop Fighting | D | |
Available Moves Moves
Damage vs Lairon View Machop builds →Focus Punch 4x161-190%KO Cross Chop 4x109-128%KO Earthquake 4x73-85% Submission 4x91-108%KO | ||
Makuhita Fighting | D | |
Available Moves Moves
Damage vs Lairon View Makuhita builds →Focus Punch 4x131-154%KO Earthquake 4x61-72% Surf 2x30-36% Dig 4x49-58% | ||
In Ruby & Sapphire, Starmie can KO Lairon with Surf (164-193%). Claydol threatens a KO with Earthquake (134-159%).
 Starmie WaterPsychic | A | |
Recommended Build AbilityNatural Cure ItemLeftovers NatureTimid Moves
Damage vs Lairon View Starmie builds →Rapid Spin2-2% Ice Beam27-32% Thunderbolt54-64% Surf 2x164-193%KO | ||
 Claydol GroundPsychic | A | |
Recommended Build AbilityLevitate ItemLeftovers NatureAdamant Moves
Damage vs Lairon View Claydol builds →Rapid Spin3-3% Earthquake 4x134-159%KO Explosion14-16% Psychic23-26% | ||
Heracross BugFighting | B | |
Recommended Build AbilitySwarm ItemSalacberry NatureJolly Moves
Damage vs Lairon View Heracross builds →Megahorn28-32% Rock Slide11-13% | ||
Ruby & Sapphire Evolution
Lairon sits between Aron and Aggron in this three-stage line. Not the final form yet. For breeding, slow to hatch with a decent partner pool via one egg group. So far, Defense got the biggest boost (+40 from Aron). The final form adds another 100 stats on top. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed with Lairon to get Aron eggs using 49 partners from the Monster egg group. Notable egg moves include Body Slam, Endeavor, Smelling Salts and 1 more.
Ruby & Sapphire Lairon Best Moveset
Best Build
No build content available for this Pokemon in Gen 3.
Try selecting a different game/generation filter, or check back later.
Moves
Don't skip the egg moves. Lairon picks up Body Slam and Endeavor only through breeding, and both fill gaps the natural movepool can't. STAB runs through Iron Tail and Rock Tomb while Normal and Ground coverage and more adds range.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
How to Get Lairon in Ruby & Sapphire
decent spawn rates for Lairon across 6 locations in late-game routes. Nothing complicated. Check the sorted list below, compare the top few options, and head to whichever is closest.
Where To Catch Lairon in Ruby & Sapphire
The path to Lairon starts with Aron at Lv. 7-44 via walking encounters. 2 catchable stages total, with locations listed for each one below.
Step 1Catch AronGranite Cave - B1FRubyGrass Lv.9-11 Cave40%EarlyGranite Cave - B1FSapphireGrass Lv.9-11 Cave40%EarlyGranite Cave - B2FSapphireGrass Lv.10-12 Cave40%EarlyGranite Cave - B2FRubyGrass Lv.10-12 Cave40%EarlyGranite Cave - 1F Room 2RubyGrass Lv.7-8 Cave10%EarlyGranite Cave - 1F Room 2SapphireGrass Lv.7-8 Cave10%EarlyVictory Road - 1FSapphireGrass Lv.36-40 Cave5%LateVictory Road - 1FRubyGrass Lv.36-40 Cave5%Late
Step 2Lairon ✓Victory Road - B1FRubyGrass Lv.40-42 Cave15%LateVictory Road - B1FSapphireGrass Lv.40-42 Cave15%LateVictory Road - B2FSapphireGrass Lv.40-44 Cave15%LateVictory Road - B2FRubyGrass Lv.40-44 Cave15%LateVictory Road - 1FRubyGrass Lv.40 Cave10%LateVictory Road - 1FSapphireGrass Lv.40 Cave10%Lateor evolve from Aron (Step 1)
Lairon Guide
At 430 BST, Lairon is firmly in pre-evolution territory. Evolve it into Aggron before bringing it to any serious fight.
In Ruby & Sapphire, watch for Blaziken (Fighting), Swampert (Ground), and Starmie (Water) when using Lairon. They all hit it super-effectively with STAB. Blaziken is the most dangerous since Fighting moves deal 4x damage. At base 40 Speed, Lairon won't outrun any of these threats so switching to a resist is usually the safer play.
Sturdy prevents being KOed from full HP, leaving 1 HP instead. That's the one you want on Lairon. Heavy Metal is the hidden ability. Niche, but it has its uses. Rock Head works too if your team needs something different.
Lairon is a physical attacker with base 90 Attack. Enough bulk to take a hit or two, too. Speed tells the real story. Base 40 Speed is low. Priority moves or Trick Room are the way to go. Fits the trick room role.
Game Availability
Debuting in Ruby & Sapphire, Lairon appears in 15 games across 8 generations. A reliable presence in most mainline games, typically found through catching or hatching as a base form.
Click a game to view version-specific details
- Gen 1Y
Yellow - Gen 1RB
Red & Blue - Gen 2GS
Gold & Silver - Gen 2C
Crystal - Gen 3RSDebut
Ruby & Sapphire - Gen 3FRLG
FireRed & LeafGreen - Gen 3E
Emerald - Gen 4Pt
Platinum - Gen 4HGSS
HeartGold & SoulSilver - Gen 4DP
Diamond & Pearl - Gen 5BW
Black & White - Gen 5B2W2
Black 2 & White 2 - Gen 6XY
X & Y - Gen 6ORAS
Omega Ruby & Alpha Sapphire - Gen 7USUM
Ultra Sun & Ultra Moon - Gen 7SM
Sun & Moon - Gen 7LGPE
Let's Go Pikachu & Eevee - Gen 8SwSh
Sword & Shield - Gen 8PLA
Legends: Arceus - Gen 8BDSP
Brilliant Diamond & Shining Pearl - Gen 9SV
Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW
Winds & Waves