<p>Now that Aggron has a move enabling it to rival the most powerful attacks in the game in terms of damage output, it can be more than simply the retarded offspring of Rhydon and Registeel. After one Rock Polish with the given EVs, it can outspeed all Scarf Heatran and OHKO with Earthquake. If you give it Adamant nature and 252 Attack EVs, then it will be able to outspeed and OHKO Gliscor once the Liechi Berry is activated at +2 Speed. Head Smash can even smash through Skarmory and Bronzong with little effort, OHKOing and 2HKOing them respectively once the boost comes up. Earthquake provides the other necessary typing to prevent Steel types from walling this set, and can also 2HKO most fighting types with the boost. Swampert still completely walls this set, so a Grass-type partner is recommended.</p>