Is Aggron Good in FireRed & LeafGreen Playthrough?
Steel/Rock with AbilityRock Head for recoil-free attacks. Trade-only. If imported, the enormous Defense handles most physical matchups. The 4x Fighting and Ground weaknesses mean Giovanni and Bruno are dangerous. Strong where it's strong.
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.
Aggron 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 42.
- After Misty
- TUTORRockRock Slide11390%10
- LV 29SteelIron Tail15075%15
- After Erika
- TM15NormalHyper Beam15090%5
- TM22GrassSolar Beam120100%10
- After Koga
- TM01FightingFocus Punch150100%20
- After Sabrina
- TUTORElectricThunder Wave—90%20
- After Giovanni
- TM26GroundEarthquake100100%10
- LV 63NormalDouble-Edge120100%15
- Post-Game
- TM42NormalFacade70100%20
How to Get Aggron in FireRed & LeafGreen
Three stages from a Granite Cave import, Aggron caps the Aron line at level 42. The heavy steel type needs a long leveling grind after the Hoenn trade.
How to Obtain Aggron 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 2Evolve into Lairon
Step 3Aggron ✓
Aggron Weakness
Type-wise, Aggron takes extra damage from Fighting, Ground, and Water. Watch out for Fighting and Ground attacks, those deal 4x damage. Poison moves do nothing thanks to a full immunity. 9 resistances give it solid defensive coverage on top of that. Aggron's physical bulk (base 180 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 Aggron Weak Against
GoodBest Pokemon Against Aggron
 Squirtle Water | C | |
Obtain MethodPallet Town Gift | ||
 Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Aggron View Nidoking builds →Earthquake 4x115-136%KO Double Kick 4x32-38% Water Pulse 2x43-53% | ||
 Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Aggron View Nidoqueen builds →Earthquake 4x106-125%KO Double Kick 4x25-30% Water Pulse 2x38-45% | ||
 Geodude RockGround | C | |
 Mankey Fighting | C | |
Available Moves Moves
Damage vs Aggron View Mankey builds →Earthquake 4x64-75% Karate Chop 4x57-68% | ||
 Wartortle Water | C | |
Obtain MethodEvolve Squirtle (Pallet Town Gift) Available Moves Moves
Damage vs Aggron View Wartortle builds →Waterfall 2x72-85% Dig 4x38-45% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Aggron View Nidoking builds →Earthquake 4x115-136%KO Brick Break 4x57-68% Water Pulse 2x43-53% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Aggron View Nidoqueen builds →Earthquake 4x106-125%KO Brick Break 4x51-60% Water Pulse 2x38-45% | ||
Geodude RockGround | C | |
Available Moves Moves
Damage vs Aggron View Geodude builds →Earthquake 4x96-113%KO Brick Break 4x51-60% | ||
Mankey Fighting | C | |
Available Moves Moves
Damage vs Aggron View Mankey builds →Brick Break 4x75-91% Earthquake 4x64-75% | ||
Wartortle Water | C | |
Obtain MethodEvolve Squirtle (Pallet Town Gift) Available Moves Moves
Damage vs Aggron View Wartortle builds →Brick Break 4x43-53% Waterfall 2x72-85% Dig 4x38-45% | ||
 Marowak Ground | C | |
Available Moves Moves
Damage vs Aggron View Marowak builds →Earthquake 4x86-102%KO Brick Break 4x42-50% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Aggron View Nidoqueen builds →Earthquake 4x92-109%KO Brick Break 4x50-59% Water Pulse 2x39-45% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Aggron View Nidoking builds →Earthquake 4x103-123%KO Brick Break 4x53-64% Water Pulse 2x42-50% | ||
 Machoke Fighting | C | |
Available Moves Moves
Damage vs Aggron View Machoke builds →Brick Break 4x75-89% Earthquake 4x65-77% | ||
 Primeape Fighting | C | |
Available Moves Moves
Damage vs Aggron View Primeape builds →Brick Break 4x81-95% Earthquake 4x69-82% | ||
Marowak Ground | C | |
Available Moves Moves
Damage vs Aggron View Marowak builds →Earthquake 4x87-103%KO Brick Break 4x44-53% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Aggron View Nidoqueen builds →Earthquake 4x92-109%KO Brick Break 4x47-57% Surf 2x60-71% | ||
Nidoking PoisonGround | C | |
Available Moves Moves
Damage vs Aggron View Nidoking builds →Earthquake 4x103-121%KO Brick Break 4x52-61% Surf 2x67-79% | ||
 Vaporeon Water | B | |
Obtain MethodEvolve Eevee (Celadon City Gift) Available Moves Moves
Damage vs Aggron View Vaporeon builds →Surf 2x120-142%KO Dig 4x30-36% | ||
Machoke Fighting | C | |
Available Moves Moves
Damage vs Aggron View Machoke builds →Brick Break 4x77-91% Earthquake 4x69-81% | ||
 Hitmonlee Fighting | B | |
Obtain MethodSaffron City Gift Available Moves Moves
Damage vs Aggron View Hitmonlee builds →Focus Punch 4x170-200%KO Earthquake 4x79-93% | ||
Machoke Fighting | C | |
Available Moves Moves
Damage vs Aggron View Machoke builds →Focus Punch 4x148-176%KO Earthquake 4x69-81% | ||
Primeape Fighting | C | |
Available Moves Moves
Damage vs Aggron View Primeape builds →Focus Punch 4x155-182%KO Earthquake 4x69-81% | ||
Marowak Ground | C | |
Available Moves Moves
Damage vs Aggron View Marowak builds →Earthquake 4x87-103%KO Focus Punch 4x82-97% | ||
Nidoqueen PoisonGround | C | |
Available Moves Moves
Damage vs Aggron View Nidoqueen builds →Focus Punch 4x92-109%KO Earthquake 4x92-109%KO Surf 2x60-71% | ||
Hitmonlee Fighting | B | |
Obtain MethodSaffron City Gift Available Moves Moves
Damage vs Aggron View Hitmonlee builds →Focus Punch 4x164-193%KO Earthquake 4x74-88% | ||
Primeape Fighting | C | |
Available Moves Moves
Damage vs Aggron View Primeape builds →Focus Punch 4x145-171%KO Earthquake 4x66-79% | ||
Machoke Fighting | C | |
Available Moves Moves
Damage vs Aggron View Machoke builds →Focus Punch 4x141-166%KO Earthquake 4x64-76% | ||
Marowak Ground | C | |
Available Moves Moves
Damage vs Aggron View Marowak builds →Earthquake 4x82-96% Focus Punch 4x79-93% | ||
 Blastoise Water | C | |
Obtain MethodEvolve Squirtle (Pallet Town Gift) Available Moves Moves
Damage vs Aggron View Blastoise builds →Focus Punch 4x79-93% Earthquake 4x54-64% Surf 2x96-114%KO | ||
Hitmonlee Fighting | B | |
Obtain MethodSaffron City Gift Available Moves Moves
Damage vs Aggron View Hitmonlee builds →Focus Punch 4x168-199%KO Earthquake 4x74-88% | ||
Primeape Fighting | C | |
Available Moves Moves
Damage vs Aggron View Primeape builds →Focus Punch 4x151-178%KO Earthquake 4x68-80% | ||
Machoke Fighting | C | |
Available Moves Moves
Damage vs Aggron View Machoke builds →Focus Punch 4x144-170%KO Earthquake 4x66-77% | ||
Marowak Ground | C | |
Available Moves Moves
Damage vs Aggron View Marowak builds →Earthquake 4x84-99% Focus Punch 4x82-97% | ||
 Rhydon GroundRock | B | |
Available Moves Moves
Damage vs Aggron View Rhydon builds →Earthquake 4x123-145%KO Focus Punch 4x119-141%KO Surf 2x41-48% | ||
 Heracross BugFighting | A | |
Available Moves Moves
Damage vs Aggron View Heracross builds →Focus Punch 4x171-202%KO Earthquake 4x77-90% | ||
Hitmonlee Fighting | B | |
Obtain MethodSaffron City Gift Available Moves Moves
Damage vs Aggron View Hitmonlee builds →Focus Punch 4x164-193%KO Earthquake 4x73-86% | ||
Primeape Fighting | C | |
Available Moves Moves
Damage vs Aggron View Primeape builds →Focus Punch 4x148-175%KO Earthquake 4x66-78% | ||
Machoke Fighting | C | |
Available Moves Moves
Damage vs Aggron View Machoke builds →Focus Punch 4x141-166%KO Earthquake 4x63-74% | ||
 Donphan Ground | B | |
Available Moves Moves
Damage vs Aggron View Donphan builds →Earthquake 4x110-130%KO Rock Smash 4x17-20% | ||
In FireRed & LeafGreen, Gengar's Thunderbolt hits Aggron for 44-53%.
S | ||
Recommended Build AbilityNatural Cure ItemLeftovers NatureModest Moves
Damage vs Aggron View Blissey builds →Ice Beam17-20% | ||
S | ||
Recommended Build AbilityLevitate ItemLeftovers NatureTimid Moves
Damage vs Aggron View Gengar builds →Thunderbolt44-53% Explosion5-6% | ||
A | ||
Recommended Build AbilityKeeneye ItemLeftovers NatureCareful Moves View Skarmory builds →
| ||
A | ||
Recommended Build AbilityImmunity ItemLeftovers NatureAdamant Moves
Damage vs Aggron View Snorlax builds →Shadow Ball7-8% Body Slam4-4% Self Destruct8-10% Earthquake 4x69-82% | ||
A | ||
Recommended Build AbilityRockhead ItemChoice Band NatureJolly Moves
Damage vs Aggron View Aerodactyl builds →Earthquake 4x102-120%KO Rock Slide9-11% Double Edge8-9% | ||
Aggron Evolutions
Aggron is the final form in a three-stage chain from Aron through Lairon. Breeding this form produces Aron eggs (slow to hatch). Evolving from Aron gave Aggron the biggest boost in Defense (+80), bringing the total to 530 stats. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed with Aggron 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 Aggron Best Moveset
110 Attack behind 180 Defense and Steel/Rock typing resisting nine types. AbilityRock Head removes MoveDouble-Edge recoil. The moveset fires MoveEarthquake and Rock TermStab at solid physical power. 4x Fighting and Ground weaknesses are devastating, but the physical side blocks anything that doesn't exploit them.
Best Build
Aggron best EVs are Attack and HP
Physical Tank Moveset
- Rock Slide
- Focus Punch
- Thunder Wave
- Substitute
Recommended Teammates
Moves List
Hard to wall, honestly. Aggron threatens 10 types beyond its own STAB, with Normal and Ground standing out. Pair that with Iron Tail and Rock Slide and switchins need to think twice.
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 claims a large mountain as its sole territory. It mercilessly thrashes those that violate its space.
Aggron FireRed & LeafGreen Guide
No. Aggron isn't catchable in FireRed & LeafGreen. Obtain one in Ruby, Sapphire, or Emerald, then trade it over.
Game Availability
Aggron first appeared in Ruby & Sapphire and spans 15 games across 8 generations. It later gained a Mega form in Generation 6, adding new dimensions to its competitive identity.
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 6ORASMega
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