Moves

Aggron's potency as an offensive Pokemon in RU is shown here with a powerful Choice Band set. With a Choice Band equipped and an Adamant nature, Aggron will 2HKO even the bulkiest of Pokemon without a Rock-type resistance with Head Smash. The rest of Aggron's moveset is basically there for covering what can survive Head Smash. Heavy Slam is a good secondary STAB option thanks to Aggron's high weight and is able to take care of Fairy-types more reliably as well as Flygon. Its perfect accuracy may also make it optimal in scenarios where Aggron can't afford to miss with a move. Low Kick is a very important move for Aggron and is arguably the second biggest reason to fear it. It 2HKOes Rhyperior, the primary Rock-resistant Pokemon in RU, without the need for entry hazard support. Aggron's last move targets specific Pokemon that can stand in the way of Head Smash. Fire Punch is preferred, as Bronzong is quite common and it also OHKOes Escavalier without having to risk a miss with Head Smash. Ice Punch is an option if defensive Flygon is a problem for your team.

Set Details

The EV spread maximizes Aggron's offensive potential with maximum Attack and Speed investment. Adamant is the preferred nature for the power boost, as Jolly does not give Aggron any notable Speed advantages. Choice Band is the best item for Aggron, as it will be using Head Smash most of the time anyway. Rock Head is the only ability that should even be considered for this set, as the recoil from Head Smash would be absolutely ridiculous otherwise. As Aggron does have some nice resistances to Normal-, Flying-, and Fairy-type moves, it could utilize a bulkier EV spread. However, Aggron's low Special Defense and various weaknesses will usually make this investment very inconsistent.

Usage Tips

Using Aggron is relatively simple. It has notable resistances to Normal-, Flying-, and Fairy-type moves, so try to switch it into those attacks. Unless the situation calls for something else, you'll generally want to let Aggron unleash its powerful Head Smash once it's in battle. If the opponent has a healthy Rhyperior, Low Kick is a good choice to go for, as that is their likely switch-in. If you can't afford a miss but still want to use a powerful STAB move, Heavy Slam should be used. Fire Punch is great for catching Bronzong wanting to switch in if Aggron is using it. If Aggron has Fire Punch, make sure to catch Bronzong on the switch in. Finally, make sure Aggron has good pivots to fall back on, as its low Speed will often mean Aggron is forced out once it scores a KO.

Team Options

Aggron is a powerful wallbreaker, so fast sweepers and late-game cleaners, such as Aerodactyl, are go-to options to take advantage of this. With weaknesses to common Fighting-, Ground-, and Water-type moves, Aggron appreciates teammates it can fall back on when these types of Pokemon come in. Slowking has Regenerator to allow it to keep switching into Water- and Fighting-type moves for Aggron and can run Thunder Wave to slow down the opposing team, run a Choice Specs set to maintain offensive pressure, or give Aggron Trick Room support to help fix its low Speed. If utilizing Trick Room support, make sure Aggron's nature and EVs are adjusted accordingly. Specifically, use a Brave nature, move all the Speed EVs to HP, and reduce the Speed IVs to 0. Virizion resists Water- and Ground-type moves and can maintain offensive pressure with Swords Dance or Calm Mind sets. Seismitoad and Mesprit are good Stealth Rock users to use with Aggron, as Seismitoad is immune to Water-type moves, while while Mesprit is immune to Ground-type moves. Seismitoad can reliably check Rhyperior if Aggron doesn't predict their switch in with Low Kick during a match, while Mesprit can provide Healing Wish support or function as a Rhyperior lure with the right coverage move.