- Stealth Rock
- Rock Slide
- Protect / Curse
Item: Oran Berry
EVs: 196 HP / 116 Atk / 196 Def
Aron makes a nice counter to many potent physical threats. Just switch in with any of Aron’s helpful resistances, set down Stealth Rocks as they switch in their counter, and switch out. Rock Slide is used for a reliable STAB attack.
Protect can help you scout for Fighting or Ground attacks, and help scout in general. Curse makes Aron a tad harder to take down, but if you really want to tank, try using the Metal Burst set below.Choice Aron
- Rock Slide
- Iron Head
Item: Choice Band
EVs: 116 HP / 196 Atk / 196 Spe
Aron has a good attack stat, so giving him a Choice Band makes him a sturdy, hard hitting Pokemon. It’s a crying shame Aron doesn’t have access to Stone Edge, so Rock Slide will have to fill in its gap. Iron head is yet another STAB attack for Aron to work with, and Earthquake is a decently powerful attack for Aron. Superpower is perfect for a hit and run pokemon like CB Aron. It does the most damage vs. Munchlax and Bronzor and can hit a Magnet Rise'd Magnemite.Metal Burst
- Metal Burst
- Iron Head
- Protect / Endure
Item: Focus Sash / Custap Berry
EVs: 196 HP / 116 Def / 196 SDef
IVs: 0 Spe
Metal Burst will counter back any attack thrown at Aron, but will only work if Aron is slower than the opponent. There are two item variants here. Focus Sash allows you to scout attacks with Protect and use Metal Burst when appropriate. The new Custap Berry variant allows you to predict an attack and survive, and then Endure down to 1HP and reduce the next opponent to 1HP with Endeavor. Endeavor is more effective in a TR setting, but provides a useful foil to Metal Burst. Iron Head is more accurate and powerful than Rock Slide, despite having poorer type matchups.Rock Polish
- Rock Slide
- Rock Polish
- Magnet Rise / Iron Head
Item: Oran Berry / Expert Belt
Ability: Rock Head
EVs: 116 HP/ 196 Atk / 196 Spe
Rock Polish Aron was mostly outclassed before, but now has a very useful support option other Rock Polish users do not possess. Once it gets an RP, it can Magnet Rise before CB Diglett can Earthquake it. This applies to basically any Earthquake user outside of Scarf Onix (Mold Breaker only affects ability effects, not move effects like Magnet Rise). Alternatively, you can use Iron Head to cover Baltoy and do slightly more damage to Bronzor and other Levitators. Fighting moves still cause a concern, but most of their users are frail. Oran Berry is for durability, Expert Belt deals more damage with Rock/Ground's superb coverage. Life Orb is also an option, but at 2HP a pop it can be quite a price to pay.Other Options
Chople Berry can be used over Oran Berry if you have problems with Fighting Hidden Powers often. Shuca Berry can do the same for Ground attacks, but with Magnet Rise it is less of a priority. Rock Head Double-Edge is decently powerful, but has been mostly supplanted by the superior coverage offered by Superpower.EVs
When EVing Aron, always prioritize HP and then, depending on offensive or defensive set, invest in Attack or Defense (respectively). 116 EVs in Special Defense with Chople Berry turns every unboosted NonSTAB HP Fighting and Croagunk Vacuum Wave into 2HKOs. Remember to always have a -Speed nature and no speed IVs when using Metal Burst.Opinion
Aron is a dense little puffball of adorable metal fun. Just don't drop him on your foot.
Aron has a high defense stat and a wide array of useful resistances. On the other end though, his Steel / Rock typing gives him a nasty 4x weakness to Earthquake, one of the most common moves in the game. He can endure physical hits with ease, but letting Aron sit out on a Pokemon that might have a ground or fighting attack is a death wish. Aron's low Special defense makes it a poor generic wall, and high-powered physical STAB Ground and Fighting attacks can still OHKO it.
That said, Aron can really abuse the positive aspects of his typing well. Unlike Bronzor he resists dark and makes a fantastic counter to Meowth, Aipom (sans Brick Break), Dodou, and Tailow. Just try to make sure your opponent’s Pokemon doesn’t have a Fighting or Ground move and Aron can drive them nuts.Counters
Bronzor and Baltoy are both excellent counters to Aron. Not only do both have great defense and a resistance to most of Aron’s attacks, but they can set up their own layer of Stealth Rocks and kill you with Earthquake. Gligar works in almost the exact same way, but he has the option of boosting his stats before he slaughters Aron with a powerful STAB Earthquake. Onix is also a decent counter to Aron, but repeated Earthquakes from Aron while Onix switches in might wear him down.
Diglett can come into Aron for a revenge kill and OHKO Aron with ease. Cubone’s super powered Earthquakes also will make short work of Aron. Cranidos also has sky-high attack to crush Aron into a crumpled can, but like Diglett, he can only come in for a revenge kill.
Ground types aren’t the only things that stand in Aron’s way. Machop, Mankey and Riolu all have a field day smashing Aron to bits with there STAB fighting attacks. Croagunk can do the same and run Vacuum Wave to prey on Aron’s awful Special Defense, but he won’t enjoy taking an Earthquake from Aron.
To OHKO a 24 / 20 Aron with an unSTAB Earthquake, you’ll need an attack stat of at least 14. This really isn’t that hard of an attack stat to reach for physical sweepers, so if you have access to a Fighting or Ground type moves (or a decent special stat to harness Hidden Power), Aron really shouldn’t be much of a problem.