Is Lairon Good in FireRed & LeafGreen Playthrough?
Steel/Rock mid-stage with AbilitySturdy or AbilityRock Head. Trade-only. Building toward Aggron at 42. The Defense keeps Lairon alive through fights it can't end quickly.
Aron trades roughly evenly with Brock's team.
Misty's team hits Aron's weaknesses hard.
Aron trades roughly evenly with Lt. Surge's team.
Erika's typing presses Aron's defenses.
Aron trades roughly evenly with Koga's team.
Aron trades roughly evenly with Sabrina's team.
Aron trades roughly evenly with Blaine's team.
Aron trades roughly evenly with Giovanni's team.
Aron trades roughly evenly with Lorelei's team.
Aron trades roughly evenly with Bruno's team.
Aron trades roughly evenly with Agatha's team.
Aron has the type edge here and should clean up Lance's team.
Aron trades roughly evenly with Terry's team.
Lairon cannot be caught in this game. It must be traded in from a compatible game where it appears in the wild. On GBA, cross-region trading unlocks post-game after Celio's Sevii Islands Ruby & Sapphire quest. The Switch re-release supports only one-way transfers out to Pokemon HOME. Alternatively, transfer the pre-evolution and level it up to Lv 32.
- After Brock
- TM39RockRock Tomb9095%15
- After Misty
- TUTORRockRock Slide11390%10
- After Lt. Surge
- TM28GroundDig80100%10
- LV 29SteelIron Tail15075%15
- After Erika
- HM04NormalStrength80100%15
- TM06PoisonToxic—90%10
- After Giovanni
- TM26GroundEarthquake100100%10
- LV 53NormalDouble-Edge120100%15
- Post-Game
- TM42NormalFacade70100%20
How to Get Lairon in FireRed & LeafGreen
A level 32 evolution of Aron produces Lairon. Since Aron only exists in Hoenn's Granite Cave, the whole chain is gated by a Hoenn trade before any leveling applies.
How to Obtain Lairon in FRLG
Step 1Obtain AronCARTRIDGE TRADEfrom Ruby & SapphireAvailableCatch in Ruby & Sapphire via Walking · Granite Cave, then trade to the current game via link cable.CARTRIDGE TRADEfrom EmeraldAvailableCatch in Emerald via Walking · Granite Cave, then trade to the current game via link cable.LATER APPEARANCELATER APPEARANCELATER APPEARANCELATER APPEARANCELATER APPEARANCELATER APPEARANCENot TradeableAppears in Omega Ruby & Alpha Sapphire via Walking · Victory Road · Horde battle.HOME TRANSFERNot TradeablePokemon HOME on Switch FireRed & LeafGreen is permanently deposit-only — once it launches, Aron can be sent from this game into HOME, but never transferred in.
Step 2Lairon ✓
Step 3Evolve into Aggron
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
What is Lairon Weak Against
GoodBest Pokemon Against Lairon
 Squirtle Water | C | |
Obtain MethodPallet Town Gift | ||
 Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Lairon View Nidoking builds →Earthquake 4x142-168%KO Double Kick 4x34-40% Water Pulse 2x54-64% | ||
 Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Lairon View Nidoqueen builds →Earthquake 4x132-156%KO Double Kick 4x34-40% Water Pulse 2x46-56% | ||
 Geodude RockGround | C | |
 Mankey Fighting | C | |
Available Moves Moves
Damage vs Lairon View Mankey builds →Earthquake 4x80-96% Karate Chop 4x70-84% | ||
 Wartortle Water | C | |
Obtain MethodEvolve Squirtle (Pallet Town Gift) Available Moves Moves
Damage vs Lairon View Wartortle builds →Waterfall 2x86-102%KO Dig 4x46-56% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Lairon View Nidoking builds →Earthquake 4x142-168%KO Brick Break 4x74-88% Water Pulse 2x54-64% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Lairon View Nidoqueen builds →Earthquake 4x132-156%KO Brick Break 4x68-80% Water Pulse 2x46-56% | ||
Geodude RockGround | C | |
Available Moves Moves
Damage vs Lairon View Geodude builds →Earthquake 4x122-144%KO Brick Break 4x60-72% | ||
Mankey Fighting | C | |
Available Moves Moves
Damage vs Lairon View Mankey builds →Brick Break 4x90-108%KO Earthquake 4x80-96% | ||
Wartortle Water | C | |
Obtain MethodEvolve Squirtle (Pallet Town Gift) Available Moves Moves
Damage vs Lairon View Wartortle builds →Brick Break 4x54-64% Waterfall 2x86-102%KO Dig 4x46-56% | ||
 Marowak Ground | C | |
Available Moves Moves
Damage vs Lairon View Marowak builds →Earthquake 4x111-132%KO Brick Break 4x57-68% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Lairon View Nidoqueen builds →Earthquake 4x124-146%KO Brick Break 4x62-73% Water Pulse 2x48-56% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Lairon View Nidoking builds →Earthquake 4x130-154%KO Brick Break 4x66-78% Water Pulse 2x51-61% | ||
 Gyarados Water | B | |
Obtain MethodEvolve Magikarp (Route 4 Gift) Available Moves Moves
Damage vs Lairon View Gyarados builds →Earthquake 4x104-122%KO Waterfall 2x77-91% Rock Smash 4x24-29% | ||
 Machoke Fighting | C | |
Available Moves Moves
Damage vs Lairon View Machoke builds →Brick Break 4x99-117%KO Earthquake 4x87-102%KO | ||
Marowak Ground | C | |
Available Moves Moves
Damage vs Lairon View Marowak builds →Earthquake 4x116-137%KO Brick Break 4x59-70% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Lairon View Nidoqueen builds →Earthquake 4x127-150%KO Brick Break 4x62-74% Surf 2x74-87% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Lairon View Nidoking builds →Earthquake 4x133-157%KO Brick Break 4x70-83% Surf 2x80-96% | ||
 Vaporeon Water | B | |
Obtain MethodEvolve Eevee (Celadon City Gift) Available Moves Moves
Damage vs Lairon View Vaporeon builds →Surf 2x147-173%KO Dig 4x40-48% | ||
Machoke Fighting | C | |
Available Moves Moves
Damage vs Lairon View Machoke builds →Brick Break 4x104-124%KO Earthquake 4x88-104%KO | ||
 Hitmonlee Fighting | B | |
Obtain MethodSaffron City Gift Available Moves Moves
Damage vs Lairon View Hitmonlee builds →Focus Punch 4x227-267%KO Earthquake 4x103-122%KO | ||
Machoke Fighting | C | |
Available Moves Moves
Damage vs Lairon View Machoke builds →Focus Punch 4x199-235%KO Earthquake 4x88-104%KO | ||
 Primeape Fighting | C | |
Available Moves Moves
Damage vs Lairon View Primeape builds →Focus Punch 4x204-241%KO Earthquake 4x92-109%KO | ||
Marowak Ground | C | |
Available Moves Moves
Damage vs Lairon View Marowak builds →Earthquake 4x116-137%KO Focus Punch 4x111-130%KO | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Lairon View Nidoqueen builds →Focus Punch 4x122-143%KO Earthquake 4x127-150%KO Surf 2x74-87% | ||
Hitmonlee Fighting | B | |
Obtain MethodSaffron City Gift Available Moves Moves
Damage vs Lairon View Hitmonlee builds →Focus Punch 4x217-255%KO Earthquake 4x96-113%KO | ||
Machoke Fighting | C | |
Available Moves Moves
Damage vs Lairon View Machoke builds →Focus Punch 4x184-217%KO Earthquake 4x83-98% | ||
Primeape Fighting | C | |
Available Moves Moves
Damage vs Lairon View Primeape builds →Focus Punch 4x192-227%KO Earthquake 4x88-104%KO | ||
Marowak Ground | C | |
Available Moves Moves
Damage vs Lairon View Marowak builds →Earthquake 4x104-123%KO Focus Punch 4x104-123%KO | ||
 Blastoise Water | C | |
Obtain MethodEvolve Squirtle (Pallet Town Gift) Available Moves Moves
Damage vs Lairon View Blastoise builds →Focus Punch 4x107-126%KO Earthquake 4x72-85% Surf 2x118-139%KO | ||
Hitmonlee Fighting | B | |
Obtain MethodSaffron City Gift Available Moves Moves
Damage vs Lairon View Hitmonlee builds →Focus Punch 4x222-262%KO Earthquake 4x101-119%KO | ||
Machoke Fighting | C | |
Available Moves Moves
Damage vs Lairon View Machoke builds →Focus Punch 4x193-227%KO Earthquake 4x88-104%KO | ||
Primeape Fighting | C | |
Available Moves Moves
Damage vs Lairon View Primeape builds →Focus Punch 4x200-236%KO Earthquake 4x90-107%KO | ||
Marowak Ground | C | |
Available Moves Moves
Damage vs Lairon View Marowak builds →Earthquake 4x109-129%KO Focus Punch 4x108-127%KO | ||
 Rhydon GroundRock | B | |
Available Moves Moves
Damage vs Lairon View Rhydon builds →Earthquake 4x162-191%KO Focus Punch 4x159-187%KO Surf 2x50-59% | ||
 Heracross BugFighting | A | |
Available Moves Moves
Damage vs Lairon View Heracross builds →Focus Punch 4x229-269%KO Earthquake 4x103-121%KO | ||
Hitmonlee Fighting | B | |
Obtain MethodSaffron City Gift Available Moves Moves
Damage vs Lairon View Hitmonlee builds →Focus Punch 4x221-259%KO Earthquake 4x99-117%KO | ||
Primeape Fighting | C | |
Available Moves Moves
Damage vs Lairon View Primeape builds →Focus Punch 4x198-234%KO Earthquake 4x88-104%KO | ||
Machoke Fighting | C | |
Available Moves Moves
Damage vs Lairon View Machoke builds →Focus Punch 4x190-224%KO Earthquake 4x84-99% | ||
 Donphan Ground | B | |
Available Moves Moves
Damage vs Lairon View Donphan builds →Earthquake 4x149-175%KO Rock Smash 4x22-26% | ||
In FireRed & LeafGreen, Gyarados can KO Lairon with Earthquake (117-137%).
Gyarados Water | B | |
Recommended Build AbilityIntimidate ItemLeftovers NatureAdamant Moves
Damage vs Lairon View Gyarados builds →Earthquake 4x117-137%KO | ||
Lairon Evolutions
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.
FRLG Lairon Best Moveset
Middle-stage Steel/Rock with 140 Defense and AbilityRock Head. Improving stats heading toward Aggron. One evolution from competitive physical power. 4x weaknesses remain the problem.
Best Build
Lairon best EVs are Attack and HP
Physical Wallbreaker Moveset
- Double Edge
- Earthquake
- Rock Slide
- Hidden Power Bug
Recommended Teammates
Moves List
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 Slide while Normal and Ground coverage and more adds range.
How to Read the Moves Table
Tabs
- Level-Up
- Learned by leveling up.
- TM
- Taught by a Technical Machine.
- Egg
- Inherited via breeding.
- Tutor
- NPC tutor (cost: items, BP, money).
- Reminder
- An NPC reteaches any move this Pokemon could have learned by leveling up.
- Transfer
- Carried over from an older game using Pokemon HOME.
- Event
- Given out through Mystery Gift events.
Visual Signals
CAT (Category)
How the move deals damage and which stats it uses.
A small dot on the icon's corner marks the move as contact. That triggers abilities like Static, Flame Body, Rough Skin, or Iron Barbs, plus items like Rocky Helmet and Sticky Barb.
Tier (S to D)
Each move's competitive rank in RankedBoost's system. TM, Egg, and Tutor sort by tier by default (best first). On Level-Up, click the Tier header to do the same.
PWR (Power)
Base damage. Numbers shown in a type color include STAB (base × 1.5). Hover any colored number to see the math.
— means no power (status moves) or variable power.
Sorting & Filter
Click any column header to sort. Level-Up opens with Lv 1 at the top. TM, Egg, and Tutor open with the highest-tier moves at the top.
Search filters by move name or type. The Filter button limits the list to STAB, Physical, Special, or Status moves.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Base Stats
It habitually shows off its strength with the size of sparks it creates by ramming its steel body into boulders.
Lairon FireRed & LeafGreen Guide
Lairon isn't catchable in FireRed & LeafGreen. Catch one in Ruby, Sapphire, or Emerald, then trade it to FireRed & LeafGreen.
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 1RB
Red & Blue - Gen 1Y
Yellow - Gen 2GS
Gold & Silver - Gen 2C
Crystal - Gen 3RSDebut
Ruby & Sapphire - Gen 3E
Emerald - Gen 3FRLG
FireRed & LeafGreen - Gen 4DP
Diamond & Pearl - Gen 4Pt
Platinum - Gen 4HGSS
HeartGold & SoulSilver - Gen 5BW
Black & White - Gen 5B2W2
Black 2 & White 2 - Gen 6XY
X & Y - Gen 6ORAS
Omega Ruby & Alpha Sapphire - Gen 7SM
Sun & Moon - Gen 7USUM
Ultra Sun & Ultra Moon - Gen 7LGPE
Let's Go Pikachu & Eevee - Gen 8SwSh
Sword & Shield - Gen 8BDSP
Brilliant Diamond & Shining Pearl - Gen 8PLA
Legends: Arceus - Gen 9SV
Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW
Winds & Waves