How to Evolve Aron

Pokedex.me is an unofficial Pokémon fan-site. Evolving Aron is a straightforward leveling process. You must train Aron to level 32 to trigger its evolution into Lairon.

From there, Lairon requires exactly ten more levels. It evolves into Aggron upon reaching level 42. No Evolution Stones, trading mechanics, or friendship values are involved in this evolutionary line.

Players catching Aron in early-game locations, such as Hoenn's Granite Cave, must commit to a long grinding period. Utilizing the Exp. Share or participating in Max Raid Battles yields Exp. Candies, which accelerates this process significantly in modern generations.

We rate standard Aggron a 6/10 for competitive play. Its massive base 180 Defense makes it a physical fortress, but its dual Rock/Steel typing creates crippling 4x weaknesses to Ground and Fighting attacks.

Aggron functions best as a physical wallbreaker. A base 110 Attack stat is high enough to punch holes in defensive cores, especially when holding a Choice Band. It forces switches against Flying, Normal, and Bug-type attackers.

However, a base 50 Speed means it almost always takes a hit before moving. Special attacks, even resisted ones, easily exploit its low base 60 Special Defense, making it a liability against special sweepers like Gengar or Alakazam.

Aggron’s primary offensive niche relies on the Rock Head ability. This ability negates all recoil damage from moves that typically damage the user upon impact.

When paired with Head Smash, a Rock-type attack with 150 base power, Aggron fires off devastating STAB (Same Type Attack Bonus) attacks without losing HP. This combination can OHKO (One-Hit Knockout) most Pokémon that do not resist Rock.

Heavy Slam serves as the secondary STAB option. Because Aggron weighs 395 kg, Heavy Slam hits the maximum 120 base power against most lighter targets. This is particularly effective for removing Fairy-types like Clefable or Togekiss.

In formats allowing Mega Evolution, Aggron transforms into a premier physical wall. Mega Aggron drops the Rock typing entirely, becoming a pure Steel-type. This removes the fatal 4x weaknesses to Ground and Fighting, reducing them to standard 2x weaknesses.

Its Defense stat skyrockets to a massive base 230 upon Mega Evolving. Furthermore, Mega Aggron gains the Filter ability, which reduces the damage of super-effective attacks by 25%.

This mechanical shift allows Mega Aggron to comfortably survive Earthquakes from Garchomp or Close Combats from Lucario. It can then punish these attackers with Roar to phase them out, or hit back with a heavy Earthquake or Heavy Slam.

Aggron fits perfectly on Trick Room teams. Under Trick Room conditions, its low base 50 Speed becomes an asset, allowing it to move before faster threats like Dragapult or Cinderace.

It is a strong choice for players needing a dedicated physical sponge to absorb multi-hit moves or resisted physical attacks. Pairs well with Flying-types or Levitate users who are immune to Ground-type attacks.

• Best for: Trick Room setters, slow bulky-offense teams, and players needing a recoil-free wallbreaker.
• Bad for: Fast-paced hyper-offense teams, or teams lacking reliable switch-ins for Ground and Fighting moves.

For a wallbreaker set, invest 252 EVs in Attack and 252 EVs in HP, utilizing an Adamant nature. This maximizes damage output while providing enough bulk to survive neutral physical hits before attacking.

For a defensive build, prioritize 252 HP and 252 Defense with an Impish nature. Equip Leftovers for passive recovery, as Aggron lacks reliable healing moves outside of Rest.

Coverage moves like Earthquake, Fire Punch, or Ice Punch should fill the remaining move slots. Fire Punch specifically targets Steel/Bug types like Scizor or Ferrothorn, which otherwise resist Aggron's primary STAB attacks.

Aron belongs to the Monster and Mineral Egg Groups. Breeding a female Aron with compatible partners like Rhyhorn or Tyranitar allows the offspring to inherit specific Egg Moves.

Head Smash was strictly an Egg Move in older generations, requiring breeding with a Cranidos or Tyrantrum. In Generation 8, it can be learned via TR or the move reminder, bypassing the breeding requirement.

Curse is another highly valuable Egg Move. It lowers Speed while boosting Attack and Defense by one stage each. This perfectly synergizes with Aggron's role on Trick Room teams, turning it into a late-game setup sweeper.