Is Aggron Good in HeartGold & SoulSilver Playthrough?
Aron's final form at level 42. Steel/Rock with AbilitySturdy. Enormous Defense but 4x weaknesses to Fighting and Ground limit the gym matchups. Breed-only chain from imported parents in HGSS.
Lairon has the type edge here and should clean up Falkner's team.
Lairon resists most of Bugsy's coverage and hits back hard.
Lairon has the type edge here and should clean up Whitney's team.
Lairon has the type edge here and should clean up Morty's team.
Chuck's team hits Lairon's weaknesses hard.
Lairon has the type edge here and should clean up Jasmine's team.
Lairon has the type edge here and should clean up Pryce's team.
Lairon trades roughly evenly with Clair's team.
Lairon trades roughly evenly with Brock's team.
Misty's team hits Lairon's weaknesses hard.
Lairon trades roughly evenly with Lt. Surge's team.
Lairon trades roughly evenly with Erika's team.
Lairon has the type edge here and should clean up Janine's team.
Lairon trades roughly evenly with Sabrina's team.
Lairon trades roughly evenly with Blaine's team.
Lairon trades roughly evenly with Blue's team.
Lairon has the type edge here and should clean up Will's team.
Lairon has the type edge here and should clean up Koga's team.
Lairon trades roughly evenly with Bruno's team.
Lairon has the type edge here and should clean up Karen's team.
Aggron has the type edge here and should clean up Lance's team.
Catch Lairon
Catch Lairon in the Safari Zone (walking, Lv 45). Requires 24 Peak objects placed in Peak.
Recommended Moves
- STARTING (Lv 45)
- LV 45SteelIron TailPower 150Accuracy 75%PP 15
- LV 45SteelIron HeadPower 120Accuracy 100%PP 15
- LV 45SteelMetal ClawPower 75Accuracy 95%PP 35
- LV 45NormalTake DownPower 90Accuracy 85%PP 20
- After Bugsy
- TM28GroundDigPower 80Accuracy 100%PP 10National Park
- After Whitney
- HM04NormalStrengthPower 80Accuracy 100%PP 15Gift from a Hiker on Route 42
- After Clair
- TM26GroundEarthquakePower 100Accuracy 100%PP 10Victory Road
- LV 51NormalDouble-EdgePower 120Accuracy 100%PP 15
Evolve Lairon to Aggron
Lairon evolves into Aggron at Level 42. You get it at Level 45, past Level 42, so it evolves into Aggron the next time it levels up.
Recommended Moves
- STARTING (Lv 42)
- LV 42SteelIron HeadPower 120Accuracy 100%PP 15
- After Bugsy
- TM15NormalHyper BeamPower 150Accuracy 90%PP 5Goldenrod Department Store
- TM38FireFire BlastPower 120Accuracy 85%PP 5Goldenrod Department Store
- TM22GrassSolar BeamPower 120Accuracy 100%PP 10Goldenrod Department Store
- After Chuck
- TM01FightingFocus PunchPower 150Accuracy 100%PP 20Prize for defeating Chuck
- After Clair
- TM26GroundEarthquakePower 100Accuracy 100%PP 10Victory Road
- LV 48SteelIron TailPower 150Accuracy 75%PP 15
- LV 57NormalDouble-EdgePower 120Accuracy 100%PP 15
How to Get Aggron in HeartGold & SoulSilver
Aggron sits at the top of the Aron line, reached when Lairon hits level 42. There is no wild encounter for any stage, so a bred Aron is the true starting point.
Wild Aggron may be holding when caught:
Hard Stone (5% chance) An item to be held by a Pokemon. It is an unbreakable stone that ups the power of Rock-type moves.Catch Aron or Lairon at any of these 1 spot to eventually evolve into Aggron.
Encountered via tall grass encounters
Badge 8How to Obtain Aggron in HGSS
Aron is your first catch on the way to Aggron. You'll find walking encounters from Lv. 44-45 across 4 total spots in the chain.
- Step 2Catch or Evolve Laironor evolve from Aron (Step 1)
- Step 3Aggron ✓
How to Get Shiny Aggron in HeartGold & SoulSilver
Aggron tops the Aron line, so breed the base form Masuda-style and raise it all the way up. Compare Shiny Aggron odds across every game
HeartGold & SoulSilver Shiny Aggron Calculator
2 MethodsThe best route is Masuda Method, about 1 in 1,639 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 | Time |
|---|---|---|
| 10%lucky few | 173-- | -- |
| 25%one in four | 472-- | -- |
| 50%coin flip | 1,136-- | -- |
| 90%very likely | 3,773-- | -- |
Time assumes -- at your pace and does not change your shiny odds.
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.
For time estimates and charm math, open the HeartGold & SoulSilver shiny odds calculator with Aggron already selected.
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 |
- Fairy type does not exist — Dragon has fewer checks
- Physical / Special split now per-move (introduced Gen IV)
What is Aggron Weak Against
GoodBest Pokemon Against Aggron
 Hariyama Fighting | B | |
Available Moves Moves
Damage vs Aggron View Hariyama builds →Focus Punch 4x164-193%KO Dig 4x61-73% Surf 2x37-45% | ||
 Marowak Ground | C | |
Available Moves Moves
Damage vs Aggron View Marowak builds →Focus Punch 4x81-96% Dig 4x67-79% | ||
 Hitmonlee Fighting | C | |
Obtain MethodEvolve Tyrogue (Mt Mortar Gift) | ||
 Feraligatr Water | C | |
Obtain MethodEvolve Totodile (New Bark Town Gift) Available Moves Moves
Damage vs Aggron View Feraligatr builds →Focus Punch 4x98-116%KO Dig 4x53-63% Waterfall 2x40-47% | ||
 Primeape Fighting | C | |
Available Moves Moves
Damage vs Aggron View Primeape builds →Focus Punch 4x147-174%KO Dig 4x53-63% | ||
 Steelix SteelGround | B | |
Available Moves Moves
Damage vs Aggron View Steelix builds →Dig 4x71-84% Rock Smash 4x25-30% | ||
 Sandslash Ground | B | |
Available Moves Moves
Damage vs Aggron View Sandslash builds →Focus Punch 4x95-112%KO Dig 4x79-94% | ||
 Machoke Fighting | C | |
Available Moves Moves
Damage vs Aggron View Machoke builds →Focus Punch 4x143-169%KO Dig 4x53-63% | ||
 Quagsire WaterGround | C | |
Obtain MethodCliff Edge Gate Surfing Available Moves Moves
Damage vs Aggron View Quagsire builds →Earthquake 4x84-99% Focus Punch 4x84-99% Waterfall 2x36-42% | ||
 Gliscor Ground | B | |
Available Moves Moves
Damage vs Aggron View Gliscor builds →Dig 4x75-89% Rock Smash 4x28-33% | ||
 Mamoswine IceGround | B | |
Available Moves Moves
Damage vs Aggron View Mamoswine builds →Earthquake 4x121-144%KO Rock Smash 4x33-40% | ||
 Medicham FightingPsychic | C | |
 Floatzel Water | C | |
Available Moves Moves
Damage vs Aggron View Floatzel builds →Focus Punch 4x98-116%KO Dig 4x53-63% Waterfall 2x40-47% | ||
 Kingler Water | C | |
Available Moves Moves
Damage vs Aggron View Kingler builds →Dig 4x64-76% Rock Smash 4x33-40% Surf 2x67-79% | ||
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 63 partners from the Monster egg group. Notable egg moves include Body Slam, Curse, Dragon Rush and 6 more.
HGSS Aggron Best Moveset
180 Defense blocks physical hits from anything that doesn't carry Fighting or Ground coverage (both 4x effective). 110 Attack with AbilityRock Head removes recoil from MoveHead Smash for massive physical Rock damage. The moveset dominates when its weaknesses aren't targeted. 50 Speed.
Best Build
Aggron best EVs are Attack and Speed
Physical Sweeper Moveset
- Head Smash
- Earthquake
- Iron Head
- Rock Polish
Recommended Teammates
Moves List
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.
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
All 42 TMs are obtainable before the Elite Four
Egg Moves
Tutor Moves
Base Stats
You can tell its age by the length of its iron horns. It claims an entire mountain as its territory.
Aggron HeartGold & SoulSilver Guide
Mega Evolution isn't available in HeartGold & SoulSilver, but Aggron does have a Mega form in Gen 6-7 games (X/Y, ORAS, Sun/Moon). Mega Aggron hits 630 BST.
In HeartGold & SoulSilver, Aggron plays as a balanced. Not the fastest, so pick your spots carefully.
In HeartGold & SoulSilver, Adamant is the go-to nature for Aggron. That's +Attack / -Sp. Atk. Pair it with 4 HP / 252 Atk / 252 Spe EVs. Fits the balanced role.
Game Availability
Aggron first appeared in Ruby & Sapphire and spans 15 games across 7 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 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
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