DexDB

No. 0306

Mega Aggron

Iron Armor Pokémon

BaseMega
Mega Aggron
Official art
Steel
Height
2.2 m 7′03″
Weight
395 kg 870.8 lbs
Base stat total
630 Higher than 98% of Pokémon
Introduced
Gen VI X & Y
Abilities
Pokédex entryShield
Long ago, there was a king who wore a helmet meant to resemble the head of an Aggron. He was trying to channel the Pokémon’s strength.
See all 10 entries

Base stats

HP70145–177250–344
Atk140144–211256–416
Def230225–310418–614
SpA6072–123112–240
SpD8090–145148–284
Spe5063–11294–218
Total630Higher than 98% of Pokémon
HP70Atk140Def230Spe50SpD80SpA60

Ranges in Pokémon Champions at Lv 50: 0 Stat Points with a −10% Stat Alignment to 32 Stat Points with a +10% one (HP has no alignment).Ranges in the main games at Lv 100: 0 IV/EV with a hindering nature to 31 IV/252 EV with a helpful nature. EV yield: 3 Def.

Stat calculatorChampions Stat Points & Stat Alignment, or EVs, IVs & nature
Calculate damage →

Type matchups

Weak to

2×
FightingFireGround

Resists

½×
BugDragonFairyFlyingGrassIceNormalPsychicRockSteel

Immune to

0×
Poison
Takes normal damage from 4 types
GhostWaterElectricDark

Speed tiers

The faster Pokémon moves first each turn, so knowing who you outspeed decides a lot of battles. These are its Speed values at Lv 50 in Pokémon Champions (base Speed 50); Scarf and Tailwind use the Max+ value.

Max+112Max102No SP70Min63Scarf168Tailwind224

At max Speed, Aggron outspeeds 11 of the 30 most used Pokémon in Champions VGC on Showdown.

  1. 203Mega Garchomp ZModest · 32 SP · #21 on Showdown
  2. 200Mega GengarTimid · 32 SP · #26 on Showdown
  3. 190Mega Raichu YTimid · 23 SP · #13 on Showdown
  4. 189Mega SalamenceTimid · 32 SP · #4 on Showdown
  5. 184WhimsicottTimid · 32 SP · #23 on Showdown
  6. 178Mega MetagrossJolly · 32 SP · #28 on Showdown
  7. 178Mega StaraptorJolly · 32 SP · #29 on Showdown
  8. 172SneaslerAdamant · 32 SP · #2 on Showdown
  9. 169Mega FloetteTimid · 32 SP · #17 on Showdown
  10. 169GarchompJolly · 32 SP · #19 on Showdown
  11. 167Mega Charizard YTimid · 32 SP · #14 on Showdown
  12. 167Mega GardevoirTimid · 32 SP · #20 on Showdown
  13. 161IndeedeeTimid · 32 SP · #30 on Showdown
  14. 156Hisuian ArcanineJolly · 32 SP · #16 on Showdown
  15. 150ArchaludonTimid · 32 SP · #9 on Showdown
  16. 149GholdengoTimid · 32 SP · #8 on Showdown
  17. 143BasculegionJolly · 32 SP · #6 on Showdown
  18. 128PelipperTimid · 32 SP · #12 on Showdown
  19. 120VolcaronaBold · 0 SP · #25 on Showdown
  20. 112Aggron · Max+32 SP, Speed-raising alignment
  21. 105RillaboomAdamant · 0 SP · #1 on Showdown
  22. 102Aggron · Max32 SP, neutral alignment
  23. 101MiloticCalm · 0 SP · #15 on Showdown
  24. 95SylveonModest · 15 SP · #18 on Showdown
  25. 94Female IndeedeeRelaxed · 0 SP · #7 on Showdown
  26. 90PolitoedCalm · 0 SP · #22 on Showdown
  27. 90SinistchaBold · 0 SP · #24 on Showdown
  28. 85ArmarougeQuiet · 0 SP · #27 on Showdown
  29. 80IncineroarCareful · 0 SP · #3 on Showdown
  30. 80FarigirafBold · 0 SP · #11 on Showdown
  31. 70Aggron · No SP0 SP, neutral alignment
  32. 70KingambitAdamant · 0 SP · #5 on Showdown
  33. 60Mega GolisopodAdamant · 0 SP · #10 on Showdown

Smogon · Showdown Others at their most common Speed investment in Champions VGC (Reg M-C · Doubles, Sep 2026); Pokémon holding a Mega Stone are shown as their Mega.

Abilities

Competitive

Smogon · Showdown On Showdown

Sep 2026

0.61% of teams · rank #108 · Reg M-C · Singles · 1760+ rating · 69,462 battles · Sep 2026

Most common build

Item
Aggronite
Ability
Stat Alignment
Adamant
Stat Points
32 HP / 32 Atk / 2 Def
  1. Heavy Slam
  2. Head Smash
  3. Ice Punch
  4. Fire Punch

Each part is the most used on its own, so not every team runs this exact set.

Usage by rating

  • All players0.52%
  • Rated 1500+0.46%
  • Rated 1630+0.51%
  • Rated 1760+0.61%

Usage by month

Apr 20260.61%

Moves

Items

Abilities

  • 100%

EV spreads

  • Adamant 32 HP / 32 Atk / 2 Def56.4%
  • Impish 32 HP / 32 Def / 2 SpD24%
  • Careful 32 HP / 2 Atk / 32 SpD6.1%
  • Sassy 32 HP / 2 Def / 32 SpD5.2%
  • Sassy 32 HP / 2 Atk / 32 SpD4.5%

Common teammates

Other Showdown formats Scarlet & Violet, with Tera
National DexRU

Evolution

  1. #0304AronSteelRock
    1. Level 32
      #0305LaironSteelRock
      1. Level 42
        #0306AggronSteelRock
        1. Mega Evolution, in battleholding Aggronite
          #0306Mega AggronSteel

Moves

Level up 17

1HardenRaises the user's Defense by 1.NormalStatus——30
1Metal Claw10% chance to raise the user's Attack by 1.SteelPhys5095%35
1Rock Tomb100% chance to lower the target's Speed by 1.RockPhys6095%15
1TackleNo additional effect.NormalPhys40100%35
12RoarForces the target to switch to a random ally.NormalStatus——20
16Headbutt30% chance to make the target flinch.NormalPhys70100%15
20ProtectPrevents moves from affecting the user this turn.NormalStatus——10
24Rock Slide30% chance to make the foe(s) flinch.RockPhys7590%10
28Iron Head30% chance to make the target flinch.SteelPhys80100%15
35Metal SoundLowers the target's Sp. Def by 2.SteelStatus—85%40
40Take DownHas 1/4 recoil.NormalPhys9085%20
48AutotomizeRaises the user's Speed by 2; user loses 100 kg.SteelStatus——15
56Iron Tail30% chance to lower the target's Defense by 1.SteelPhys10075%15
64Iron DefenseRaises the user's Defense by 2.SteelStatus——15
72Heavy SlamMore power the heavier the user than the target.SteelPhys—100%10
80Double-EdgeHas 33% recoil.NormalPhys120100%15
88Metal BurstIf hit by an attack, returns 1.5× damage.SteelPhys—100%10

TM / HM / TR 52

TM83Bulldoze100% chance lower adjacent Pkmn Speed by 1.GroundPhys60100%20
HM01CutNo additional effect.NormalPhys5095%30
HM03SurfHits adjacent Pokémon. Double damage on Dive.WaterSpec90100%15
HM04StrengthNo additional effect.NormalPhys80100%15
HM06Rock Smash50% chance to lower the target's Defense by 1.FightingPhys40100%15
HM08Rock Climb20% chance to confuse the target.NormalPhys9085%20
TMRoarForces the target to switch to a random ally.NormalStatus——20
TMFlamethrower10% chance to burn the target.FireSpec90100%15
TMIce Beam10% chance to freeze the target.IceSpec90100%10
TMBlizzard10% chance to freeze foe(s). Can't miss in Snow.IceSpec11070%5
TMHyper BeamUser cannot move next turn.NormalSpec15090%5
TMSolar BeamCharges turn 1. Hits turn 2. No charge in sunlight.GrassSpec120100%10
TMThunderbolt10% chance to paralyze the target.ElectricSpec90100%15
TMThunder WaveParalyzes the target.ElectricStatus—90%20
TMThunder30% chance to paralyze. Can't miss in rain.ElectricSpec11070%10
TMEarthquakeHits adjacent Pokémon. Double damage on Dig.GroundPhys100100%10
TMDigDigs underground turn 1, strikes turn 2.GroundPhys80100%10
TMDouble TeamRaises the user's evasiveness by 1.NormalStatus——15
TMFire Blast10% chance to burn the target.FireSpec11085%5
TMRestUser sleeps 2 turns and restores HP and status.PsychicStatus——5
TMRock Slide30% chance to make the foe(s) flinch.RockPhys7590%10
TMSubstituteUser takes 1/4 its max HP to put in a substitute.NormalStatus——10
TMProtectPrevents moves from affecting the user this turn.NormalStatus——10
TMSandstormFor 5 turns, a sandstorm rages. Rock: 1.5× SpD.RockStatus——10
TMEndureUser survives attacks this turn with at least 1 HP.NormalStatus——10
TMSwaggerRaises the target's Attack by 2 and confuses it.NormalStatus—85%15
TMAttractA target of the opposite gender gets infatuated.NormalStatus—100%15
TMSleep TalkUser must be asleep. Uses another known move.NormalStatus——10
TMIron Tail30% chance to lower the target's Defense by 1.SteelPhys10075%15
TMRain DanceFor 5 turns, heavy rain powers Water moves.WaterStatus——5
TMSunny DayFor 5 turns, intense sunlight powers Fire moves.FireStatus——5
TMFacadePower doubles if user is burn/poison/paralyzed.NormalPhys70100%20
TMFocus PunchFails if the user takes damage before it hits.FightingPhys150100%20
TMTauntTarget can't use status moves its next 3 turns.DarkStatus—100%20
TMBrick BreakDestroys screens, unless the target is immune.FightingPhys75100%15
TMRock Tomb100% chance to lower the target's Speed by 1.RockPhys6095%15
TMAerial AceThis move does not check accuracy.FlyingPhys60—20
TMDragon ClawNo additional effect.DragonPhys80100%15
TMShock WaveThis move does not check accuracy.ElectricSpec60—20
TMWater Pulse20% chance to confuse the target.WaterSpec60100%20
TMPaybackPower doubles if the user moves after the target.DarkPhys50100%10
TMFlingFlings the user's item at the target. Power varies.DarkPhys—100%10
TMRock PolishRaises the user's Speed by 2.RockStatus——20
TMDark Pulse20% chance to make the target flinch.DarkSpec80100%15
TMDragon PulseNo additional effect.DragonSpec85100%10
TMFocus Blast10% chance to lower the target's Sp. Def by 1.FightingSpec12070%5
TMGiga ImpactUser cannot move next turn.NormalPhys15090%5
TMAvalanchePower doubles if user is damaged by the target.IcePhys60100%10
TMShadow ClawHigh critical hit ratio.GhostPhys70100%15
TMFlash Cannon10% chance to lower the target's Sp. Def by 1.SteelSpec80100%10
TMStone EdgeHigh critical hit ratio.RockPhys10080%5
TMStealth RockHurts foes on switch-in. Factors Rock weakness.RockStatus——20

Biology

It treats the scratches on its armor as mementos. It takes a mountain as its territory, and protects it from trespassers. If the flora on it is damaged, it brings soil and plants trees around it.

Forms

Mega Aggron

Its body becomes coated in a pale white steel armor, granting it a menacing appearance.

Adapted from Wikipedia: List of generation III Pokémon, List of generation VI Pokémon · CC BY-SA 4.0 · edited.

Pokédex entries

Iron Armor Pokémon
Hoenn · Ruby & Sapphire
Color
Gray
Mountain
Pal Park area
Mountain
Original Hoenn#072Updated Unova#168Mountain Kalos#101New Hoenn#074Crown Tundra#193Lumiose#201

  1. Long ago, there was a king who wore a helmet meant to resemble the head of an Aggron. He was trying to channel the Pokémon’s strength.

    Shield

  2. Aggron has a horn sharp enough to perforate thick iron sheets. It brings down its opponents by ramming into them horn first.

    Sword

  3. Aggron is protective of its environment. If its mountain is ravaged by a landslide or a fire, this Pokémon will haul topsoil to the area, plant trees, and beautifully restore its own territory.

    Alpha Sapphire

  4. It claims an entire mountain as its own. The more wounds it has, the more it has battled, so don’t take it lightly.

    Black 2 · White 2 · X

  5. You can tell its age by the length of its iron horns. It claims an entire mountain as its territory.

    HeartGold · SoulSilver

  6. While seeking iron for food, it digs tunnels by breaking through bedrock with its steel horns.

    Diamond · Pearl · Platinum · Black · White · Y

  7. It claims a large mountain as its sole territory. It mercilessly thrashes those that violate its space.

    FireRed · LeafGreen

  8. Its iron horns grow longer a little at a time. They are used to determine the AGGRON’s age. The gouges in its armor are worn with pride as mementos from battles.

    Emerald

  9. AGGRON is surprisingly protective of its environment. If its mountain is ravaged by a landslide or a fire, this Pokémon will haul topsoil to the area, plant trees, and beautifully restore its own territory.

    Sapphire

  10. AGGRON claims an entire mountain as its own territory. It mercilessly beats up anything that violates its environment. This Pokémon vigilantly patrols its territory at all times.

    Ruby · Omega Ruby

Names around the world

English
Aggron
Japanese
ボスゴドラ
Japanese (romaji)
Bossgodora
Korean
보스로라
Chinese (Traditional)
波士可多拉
Chinese (Simplified)
波士可多拉
French
Galeking
German
Stolloss
Spanish
Aggron
Italian
Aggron

Sprites

Artwork and 3D models

Gen IX · Gen VII · Gen VI

Training

3 Def
45 ≈5.9% with a Poké Ball at full HP
35
284
Slow

Breeding

Monster
♂ 50%♀ 50%
35 egg cycles ≈9,180 steps (Gen IV–VII)

Where to find

Mega Evolves in battle from Aggron holding Aggronite.

Not found in the wild in the games we have location data for.

Locations cover Red & Blue to Sword & Shield (with its DLC) and Let’s Go. We don’t have them yet for Legends: Arceus, Brilliant Diamond & Shining Pearl, Scarlet & Violet and Legends: Z-A.