Is Lairon Good in Black & White Playthrough?
Aron evolves at level 32. Steel/Rock with AbilitySturdy. Postgame middle stage before Aggron at 42.
Aron trades roughly evenly with Cilan's team.
Aron trades roughly evenly with Chili's team.
Cress's team hits Aron's weaknesses hard.
Aron trades roughly evenly with Lenora's team.
Aron trades roughly evenly with Burgh's team.
Elesa's typing presses Aron's defenses.
Clay's team hits Aron's weaknesses hard.
Skyla's team hits Aron's weaknesses hard.
Aron has the type edge here and should clean up Brycen's team.
Aron trades roughly evenly with Drayden's team.
Shauntal's team hits Aggron's weaknesses hard.
Aggron trades roughly evenly with Grimsley's team.
Aggron trades roughly evenly with Caitlin's team.
Aggron trades roughly evenly with Marshal's team.
Alder's team hits Aggron's weaknesses hard.
Catch Aron
Catch Aron in White Forest (walking, Lv 5, uncommon).
Evolve Aron to Aggron
Lairon evolves into Aggron at Level 42. Level it up in the post-game, after the credits.
How to Get Lairon in Black & White
Lairon doesn't appear wild. Catch Aron instead, it shows up at decent rates. Evolve it at level 42 to get Lairon. The 3-stage chain is mapped in the step cards below.
How to Obtain Lairon in BW
How to Get Shiny Lairon in Black & White
Lairon skips wild shiny hunting, so breed a foreign Aron and raise it one evolution for the steel dinosaur. Compare Shiny Lairon odds across every game
Black & White Shiny Lairon Calculator
2 MethodsThe best route is Masuda Method, about 1 in 1,366 on each try.
Masuda Method: Breed with a parent from a different-language game. Works on any breedable line.
Full Odds: Walk through grass, surf, or fish. Every encounter is its own independent shiny roll.
How many you have done, or plan to do.
| Chance | Encounters |
|---|---|
| 10%lucky few | 144 |
| 25%one in four | 393 |
| 50%coin flip | 947 |
| 90%very likely | 3,145 |
How is this calculated?
Every encounter has the same shiny chance, the Shiny Odds Per Try shown above. Each one is a separate roll that does not care how many you have already done, so the more you hunt, the higher your overall chance of at least one shiny. The formula below turns your odds and your number of tries into that combined chance.
chance after N tries = 1 − (1 − p)^N, where p = 1 / odds per try
Example at 1 in 8,192 (classic full odds): about 864 encounters for a 10 percent chance, 5,678 for 50 percent, and 18,862 for 90 percent.
The table above flips that around: it shows how many encounters it takes to reach a 10, 25, 50, and 90 percent chance at your current odds. Turning on boosts like the Shiny Charm, sandwiches, or chains improves your odds, so the encounter numbers drop.
These are estimates, not promises. Most games have no pity counter, meaning no guaranteed shiny no matter how many you hunt, so even Very Likely is not guaranteed: some hunters find one early, others go well past that point.
Curious how fast a hunt could go? Work out your Black & White shiny odds for Lairon.
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 |
- Fairy type does not exist — Dragon has fewer checks
- Physical / Special split now per-move (introduced Gen IV)
What is Lairon Weak Against
GoodBest Pokemon Against Lairon
 Cobalion SteelFighting | B | |
Obtain MethodMistralton Cave Interact Encounter Available Move Moves
Damage vs Lairon View Cobalion builds →Close Combat 4x139-164%KO | ||
 Excadrill GroundSteel | A | |
Available Moves Moves
Damage vs Lairon View Excadrill builds →Earthquake 4x162-191%KO Brick Break 4x82-97% | ||
 Marowak Ground | C | |
Available Moves Moves
Damage vs Lairon View Marowak builds →Earthquake 4x106-124%KO Brick Break 4x53-63% | ||
 Gurdurr Fighting | C | |
Available Moves Moves
Damage vs Lairon View Gurdurr builds →Focus Punch 4x195-230%KO Dig 4x70-83% | ||
 Hitmonchan Fighting | C | |
Available Moves Moves
Damage vs Lairon View Hitmonchan builds →Focus Punch 4x195-230%KO Earthquake 4x87-103%KO | ||
 Heracross BugFighting | B | |
Available Moves Moves
Damage vs Lairon View Heracross builds →Close Combat 4x183-215%KO Earthquake 4x101-119%KO | ||
 Sawk Fighting | C | |
Available Moves Moves
Damage vs Lairon View Sawk builds →Close Combat 4x183-215%KO Earthquake 4x101-119%KO | ||
 Terrakion RockFighting | B | |
Obtain MethodVictory Road Interact Encounter Available Moves Moves
Damage vs Lairon View Terrakion builds →Close Combat 4x188-221%KO Earthquake 4x105-123%KO | ||
 Gallade PsychicFighting | B | |
Available Moves Moves
Damage vs Lairon View Gallade builds →Close Combat 4x183-215%KO Earthquake 4x101-119%KO | ||
 Mienshao Fighting | B | |
Available Moves Moves
Damage vs Lairon View Mienshao builds →High Jump Kick 4x198-233%KO Dig 4x82-97% | ||
 Scrafty DarkFighting | C | |
Available Moves Moves
Damage vs Lairon View Scrafty builds →Focus Punch 4x172-203%KO Dig 4x63-75% | ||
 Landorus Ground | B | |
Obtain MethodAbundant Shrine Interact Encounter Available Moves Moves
Damage vs Lairon View Landorus builds →Earthquake 4x152-179%KO Focus Blast 4x259-305%KO | ||
 Throh Fighting | C | |
Available Moves Moves
Damage vs Lairon View Throh builds →Superpower 4x152-179%KO Earthquake 4x84-99% | ||
 Rhydon GroundRock | C | |
Available Moves Moves
Damage vs Lairon View Rhydon builds →Earthquake 4x157-185%KO Hammer Arm 4x105-123%KO Surf 2x49-59% | ||
Lairon Evolutions
Lairon sits between Aron and Aggron in this three-stage line. Not the final form yet. For breeding, slow to hatch with plenty of partners 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 67 partners from the Monster egg group. Notable egg moves include Body Slam, Curse, Dragon Rush and 8 more.
BW Lairon Best Moveset
Middle stage at 140 Defense with AbilitySturdy and AbilityRock Head for recoil-free physical attacks. Held ItemEviolite pushes the Defense to 210 effective. The moveset absorbs physical hits from almost anything but 4x Ground and Fighting still break through. Aggron one evolution away.
Best Build
Lairon best EVs are HP and Defense
Hazard Setter Moveset
- Head Smash
- Stealth Rock
- Iron Head
- Curse
Recommended Teammates
Moves List
Don't skip the egg moves. Lairon picks up Body Slam and Curse only through breeding, and both fill gaps the natural movepool can't. STAB runs through Head Smash and Iron Tail 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
For food, it digs up iron ore. It smashes its steely body against others to fight over territory.
Lairon Black & White Guide
In Black & White, Lairon has 430 BST and evolves into Aggron. Compare the two forms before you give either one a team slot.
Heavy Metal is the hidden ability. Doubles the Pokémon's weight. Not always the best choice. Compare it to Lairon's regular abilities before committing.
In Black & White, use Lairon as a trick room. Physical side carries the damage. It's slow, so Trick Room or priority moves are key. Set up with Curse when you get a free turn.
For Black & White, run Impish on Lairon. +Defense is what matters, and the -Sp. Atk cut doesn't hurt this set. Fits the trick room role.
Game Availability
Debuting in Ruby & Sapphire, Lairon appears in 15 games across 7 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 7Let's Go
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
Explore
Where to go next after Lairon.
Keep playing · Black & WhiteBlack & White Tier ListThe best Pokemon ranked tier by tierSee Black & White Tier List