Is Aron Good in Ruby & Sapphire Playthrough?
Granite Cave, available early. AbilityRock Head negates recoil and AbilitySturdy prevents one-hit KOs. Aggron at 42 is Steel/Rock with massive Defense. Handles Roxanne, Winona, and contributes against Glacia. The double Fighting and Ground weaknesses demand careful play. Steven uses one as his ace for a reason.
Aron has the type edge here and should clean up Roxanne's team.
Aron trades roughly evenly with Brawly's team.
Wattson's typing presses Aron's defenses.
Aron trades roughly evenly with Flannery's team.
Aron trades roughly evenly with Norman's team.
Aron trades roughly evenly with Winona's team.
Lairon has the type edge here and should clean up Tate & Liza's team.
Wallace's team hits Lairon's weaknesses hard.
Aggron has the type edge here and should clean up Sidney's team.
Aggron trades roughly evenly with Phoebe's team.
Aggron has the type edge here and should clean up Glacia's team.
Aggron has the type edge here and should clean up Drake's team.
Aggron trades roughly evenly with Steven's team.
Catchable
Catch Aron in Granite Cave (walking, Lv 7-8, uncommon).
Recommended Moves
- LV 10NormalHeadbuttPower 70Accuracy 100%PP 15
- LV 13SteelMetal ClawPower 75Accuracy 95%PP 35
- After Wattson
- HM04NormalStrengthPower 80Accuracy 100%PP 15Rusturf Tunnel
- LV 25NormalTake DownPower 90Accuracy 85%PP 20
- LV 29SteelIron TailPower 150Accuracy 75%PP 15
- After Norman
- TM42NormalFacadePower 70Accuracy 100%PP 20Prize for defeating Norman
- After Tate & Liza
- TM26GroundEarthquakePower 100Accuracy 100%PP 10Seafloor Cavern
- LV 44NormalDouble-EdgePower 120Accuracy 100%PP 15
Evolve Aron to Lairon
Aron evolves into Lairon at Level 32. Your Aron should hit Level 32 before you reach Tate & Liza, at typical leveling pace.
Recommended Moves
- STARTING (Lv 32)
- LV 32SteelIron TailPower 150Accuracy 75%PP 15
- LV 32SteelMetal ClawPower 75Accuracy 95%PP 35
- LV 32NormalTake DownPower 90Accuracy 85%PP 20
- After Wattson
- HM04NormalStrengthPower 80Accuracy 100%PP 15Rusturf Tunnel
- After Flannery
- TM06PoisonToxicPower —Accuracy 85%PP 10Fiery Path
- After Norman
- TM42NormalFacadePower 70Accuracy 100%PP 20Prize for defeating Norman
- After Tate & Liza
- TM26GroundEarthquakePower 100Accuracy 100%PP 10Seafloor Cavern
- LV 53NormalDouble-EdgePower 120Accuracy 100%PP 15
Evolve Lairon to Aggron
Lairon evolves into Aggron at Level 42. Your Lairon should hit Level 42 before you reach Sidney, at typical leveling pace.
Recommended Moves
- STARTING (Lv 42)
- LV 42SteelIron TailPower 150Accuracy 75%PP 15
- After Brawly
- TM35FireFlamethrowerPower 95Accuracy 100%PP 15Mauville Game Corner
- After Norman
- TM01FightingFocus PunchPower 150Accuracy 100%PP 20Route 115
- TM15NormalHyper BeamPower 150Accuracy 90%PP 5Lilycove Department Store
- TM38FireFire BlastPower 120Accuracy 85%PP 5Lilycove Department Store
- TM22GrassSolar BeamPower 120Accuracy 100%PP 10Safari Zone
- After Tate & Liza
- TM26GroundEarthquakePower 100Accuracy 100%PP 10Seafloor Cavern
- LV 63NormalDouble-EdgePower 120Accuracy 100%PP 15
How to Get Aron in Ruby & Sapphire
Eight encounters packed into just two cave areas, with rarity running from common down to rare. Aron clusters tightly rather than spreading out, so the two caves are your whole hunting ground, levels 7 to 36.
Wild Aron may be holding when caught:
Hard Stone (5% chance) A hold item that raises the power of ROCK-type moves.2 locations to catch Aron
Encountered via tall grass encounters
Badge 2
Badge 3
Badge 4
Badge 5
Badge 6
Badge 7
Badge 8Where To Catch Aron in RS
Aron is where the line starts, caught through walking encounters at Lv. 7-36. The chain covers 2 catchable stages before reaching the final form.
- Step 2Catch or Evolve into LaironVictory Road - B1FLv.40-42CaveRate 15%Victory Road - B2FLv.40-44CaveRate 15%Victory Road - 1FLv.40CaveRate 10%or evolve from Aron (Step 1)
- Step 3Evolve into AggronBREEDINGAvailableLeave a compatible parent at the Pokemon Day Care to receive a Aron egg.
Want the exact numbers? Work out your catch odds in Ruby & Sapphire for Aron.
How to Get Shiny Aron in Ruby & Sapphire
Aron packs the rocky depths of Granite Cave in big numbers, so its abundance makes it an easy wild shiny to grind toward. Compare Shiny Aron odds across every game
Ruby & Sapphire Shiny Aron Calculator
2 MethodsBoth methods here share the same odds, about 1 in 8,192 on each try. Pick whichever fits how you play.
Full Odds: Walk through grass, surf, or fish. Every encounter is its own independent shiny roll.
Breeding: Hatch eggs of this line; each egg rolls at the base shiny rate (no Masuda before Gen IV).
How many you have done, or plan to do.
| Chance | Encounters | Time |
|---|---|---|
| 10%lucky few | 864-- | -- |
| 25%one in four | 2,357-- | -- |
| 50%coin flip | 5,678-- | -- |
| 90%very likely | 18,862-- | -- |
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.
Curious how fast a hunt could go? Work out your Ruby & Sapphire shiny odds for Aron.
Aron Weakness
Aron is weak to Fighting, Ground, and Water. Watch out for Fighting and Ground attacks, those deal 4x damage. On the flip side, it's immune to Poison-type moves entirely. With 9 resistances, the defensive profile is strong. Aron's physical bulk (base 100 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 Aron Weak Against
GoodBest Pokemon Against Aron
 Hariyama Fighting | B | |
Available Moves Moves
Damage vs Aron View Hariyama builds →Focus Punch 4x320-377%KO Dig 4x86-102%KO Surf 2x59-70% | ||
 Breloom GrassFighting | B | |
 Machoke Fighting | C | |
Available Moves Moves
Damage vs Aron View Machoke builds →Focus Punch 4x278-328%KO Dig 4x79-93% | ||
 Combusken FireFighting | C | |
Obtain MethodEvolve Torchic (Route 101 Gift) Available Moves Moves
Damage vs Aron View Combusken builds →Focus Punch 4x243-286%KO Dig 4x66-79% | ||
 Sandslash Ground | A | |
Available Moves Moves
Damage vs Aron View Sandslash builds →Focus Punch 4x185-219%KO Dig 4x119-140%KO | ||
 Marshtomp WaterGround | C | |
Obtain MethodEvolve Mudkip (Route 101 Gift) Available Moves Moves
Damage vs Aron View Marshtomp builds →Dig 4x100-119%KO Surf 2x115-136%KO Rock Smash 4x27-33% | ||
 Azumarill Water | C | |
Obtain MethodEvolve Azurill (Petalburg City Surfing) Available Moves Moves
Damage vs Aron View Azumarill builds →Focus Punch 4x110-130%KO Surf 2x115-136%KO Dig 4x47-56% | ||
 Graveler RockGround | C | |
Available Moves Moves
Damage vs Aron View Graveler builds →Focus Punch 4x173-205%KO Dig 4x112-133%KO | ||
 Camerupt FireGround | C | |
Available Moves Moves
Damage vs Aron View Camerupt builds →Dig 4x119-140%KO Rock Smash 4x31-37% | ||
 Pelipper Water | C | |
Obtain MethodDewford Town Surfing | ||
 Lombre WaterGrass | C | |
Available Moves Moves
Damage vs Aron View Lombre builds →Surf 2x115-136%KO Rock Smash 4x20-23% | ||
 Nincada BugGround | C | |
 Trapinch Ground | C | |
Available Moves Moves
Damage vs Aron View Trapinch builds →Dig 4x119-140%KO Rock Smash 4x31-37% | ||
 Baltoy GroundPsychic | D | |
Aron Evolutions
Three stages ahead. Aron grows into Lairon, then pushes on to Aggron. Check the evolution methods below. For breeding, slow to hatch with a decent partner pool via one egg group. Evolving adds up to 200 stat points total. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed Aron with 49 breeding partners from the Monster egg group. Pass egg moves like Body Slam, Endeavor, Smelling Salts and 1 more to offspring.
RS Aron Best Moveset
Steel/Rock pre-evolution with 4x Ground and Fighting weaknesses. AbilitySturdy blocks OHKO moves while AbilityRock Head removes recoil. Aggron is two evolutions away with the Attack to justify running the typing.
Best Build
Utility Moveset
- Endeavor
- Protect
- Earthquake
Recommended Teammates
Moves List
Breeding opens up real options for Aron. Body Slam and Endeavor come exclusively from egg moves, and they're worth the effort. The rest of the kit covers basics through Iron Tail and Rock Tomb and Normal and Ground coverage and more.
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 24 TMs are obtainable before the Elite Four
Egg Moves
Tutor Moves
Base Stats
This POKéMON has a body of steel. To make its body, ARON feeds on iron ore that it digs from mountains. Occasionally, it causes major trouble by eating bridges and rails.
ARON has a body of steel. With one all-out charge, this POKéMON can demolish even a heavy dump truck. The destroyed dump truck then becomes a handy meal for the POKéMON.
Aron Ruby & Sapphire Guide
Yes. Wild Aron in Ruby & Sapphire can hold Hard Stone (5%). Use Thief (TM46) or Covet to swipe the held item without affecting your catch chance. Quickest way to farm rare items like Hard Stone.
Game Availability
Available in 15 titles since its debut in Ruby & Sapphire, Aron spans 7 generations of Pokemon games. It's accessible through catching or hatching as a base form in most mainline games.
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
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