In order to defeat Wattson in-game, I was forced to teach my Aron Rollout. Fortunately for me, it happens to be Impish, and screw IVS, I'm transferring that and USING IT.
Would this set work?
Aggron @ Aggronite
Ability: Sturdy -> Filter
EVs: 252 HP / 252 Def / 4 Atk
Help would be greatly appreciated.