Volcarona @ Buginium Z
Ability: Flame Body
EVs: 248 HP / 124 Def / 136 Spe
Timid Nature
- Quiver Dance
- Flamethrower
- Bug Buzz
- Roost
You can switch hard in on Aggron with Bulky Volcarona - the best it can do is Earthquake, which doesn't come close to 2HKOing. It's free setup fodder because of this and the set having Roost to heal off any damage it does do to you. Also, they're heavily dissuaded from clicking Heavy Slam when Volcarona's on your team, as it's a contact move, meaning Flame Body can burn it. Finally, oddly enough this can beat some Stall teams that Aggron finds itself on, namely the Aggron / Chansey / Mew / Buzzwole / Zapdos / Quagsire team made by Finch. The Chansey lacks Toxic, so it's setup fodder for Volcarona. I know this is beating up Aggron in a vacuum, but I just thought I'd mention this.