Stats & Training
Aggron's all-in on Defense at the expense of Speed. The physical lean is obvious from the bars. Yields 3 Defense EVs and follows a slow 1.25M XP grind.
It claims an entire mountain as its own. The more wounds it has, the more it has battled, so don’t take it lightly.
While seeking iron for food, it digs tunnels by breaking through bedrock with its steel horns.
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. 8 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, Dragon, Fairy |
| 0.25x (Resist) | Normal, Flying |
| 0x (Immune) | Poison |
In X & Y, Garchomp can KO Aggron with Earthquake (121-143%). Breloom's Mach Punch hits Aggron for 50-60%. Gastrodon's Scald also KOs at 103-121%.
 Garchomp DragonGround | A | |
Recommended Build AbilityRough Skin ItemRocky Helmet NatureJolly Moves
Damage vs Aggron View Garchomp builds →Earthquake 4x121-143%KO | ||
 Breloom GrassFighting | B | |
Recommended Build AbilityTechnician ItemMiracleseed NatureJolly Moves
Damage vs Aggron View Breloom builds →Bullet Seed8-10% Mach Punch 4x50-60% | ||
 Gastrodon WaterGround | B | |
Recommended Build AbilityStormdrain ItemLeftovers NatureQuiet Moves
Damage vs Aggron View Gastrodon builds →Scald 2x103-121%KO | ||
 Conkeldurr Fighting | B | |
Recommended Build AbilityIronfist ItemLum Berry NatureBrave Moves
Damage vs Aggron View Conkeldurr builds →Drain Punch 4x106-126%KO Mach Punch 4x58-68% Knock Off15-18% Rock Slide9-10% | ||
 Starmie WaterPsychic | B | |
Recommended Build AbilityNatural Cure ItemLeftovers NatureTimid Moves
Damage vs Aggron View Starmie builds →Rapid Spin1-1% Scald 2x117-138%KO Ice Beam22-26% | ||
X & Y Evolution
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 75 partners from the Monster egg group. Notable egg moves include Body Slam, Curse, Dragon Rush and 9 more.
X & Y Aggron Best Moveset
The Sash lets Aggron ignore defensive shortcomings for one turn. Use that turn to deal early damage, and Rockhead squeezes extra value from the position. Max Attack without Speed EVs push damage output.
Best Build
Aggron best EVs are Attack and Defense
Physical Tank Moveset
- Metal Burst
- Iron Head
- Head Smash
- Fire Punch
Recommended Teammates
Doubles Physical Tank Moveset
- Heavy Slam
- Fire Punch
- Stone Edge
- Stealth Rock
Recommended Teammates
Moves
Hard to wall, honestly. Aggron threatens 13 types beyond its own STAB, with Normal and Ground standing out. Pair that with Head Smash and Iron Tail and switchins need to think twice.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Transfer Moves
How to Get Aggron in X & Y
No wild encounters for Aggron. The 3-stage chain runs through Aron, which you can catch at moderate rates from the locations below. Evolve at level 42 once you've got the levels.
How to Obtain Aggron in X & Y
To get Aggron, start by catching Aron through walking encounters at Lv. 23-46. The chain covers 2 catchable stages before reaching the final form.
Step 1Catch AronTerminus Cave - 1FGrass Lv.23 CaveRareMidHorde battleTerminus Cave - 2F LeftGrass Lv.23 CaveRareMidHorde battleTerminus Cave - 2F RightGrass Lv.23 CaveRareMidHorde battleTerminus Cave - B1FGrass Lv.23 CaveRareMidHorde battleTerminus Cave - B2FGrass Lv.23 CaveRareMidHorde battle
Step 2Catch or Evolve LaironRoute 18Grass Lv.44-46 RouteCommonLateRed FlowerTerminus Cave - 1FGrass Lv.45-46 CaveCommonLateTerminus Cave - 2F LeftGrass Lv.45-46 CaveCommonLateTerminus Cave - 2F RightGrass Lv.45-46 CaveCommonLateTerminus Cave - B1FGrass Lv.45-46 CaveCommonLateTerminus Cave - B2FGrass Lv.45-46 CaveCommonLateRoute 18Grass Lv.46 RouteRarePostor evolve from Aron (Step 1)
Step 3Aggron ✓
Aggron Guide
In X & Y, Aggron has a 530 base stat total and ranks as C-Tier: a niche pick in X & Y's meta. It works best as a balanced. Metalburst with Focus Sash is the standard set.
In X & Y, yes. Mega Aggron hits 630 BST, a solid jump from the base 530. Hold the Mega Stone, trigger it in battle, and it lasts the whole fight. One Mega per team.
In X & Y, Aggron's biggest threats include Machamp (Fighting), Golem (Ground), and Swampert (Water), all carrying super-effective STAB moves. Machamp is the most dangerous since Fighting moves deal 4x damage. Aggron has enough bulk to absorb a hit, but don't push the matchup. Pivot to a teammate that resists.
Sturdy is the go-to ability for Aggron. It prevents being KOed from full HP, leaving 1 HP instead. Its hidden ability Heavy Metal can work in specific setups. Rock Head is the other option. Pick based on what your team needs.
In X & Y, Aggron fills the balanced role. It's a physical attacker with base 110 Attack. Base 50 Speed is low. Priority moves or Trick Room are the way to go. And it's tanky enough to absorb a few hits.
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 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 6ORASMega
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