Vesuvius (Camerupt)@ Cameruptite
Trait: Solid Rock -----> Sheer Force
EVs: 200 HP / 172 Sp. Def / 136 Def
Calm Nature (-Atk , +Sp. Def)
- Earth Power
- Stealth Rock / Yawn / Ancient Power
After the ban of Camerupt and its mega-stone in NU, it moved to greener pastures in RU. The Mega-Stone that OR / AS gave to Camerupt was a blessing and gave it very solid defenses of 75 / 100 / 105. Because of this and its unique typing, Camerupt can be used effectively as a Tank for troublesome Grass-types, Electric-types, and Steel-types.
EVs and Nature are meant to give Camerupt good walling capabilities and deal with certain threats, such as M-Audino and Kabutops.
Flamethrower gets STAB and is more reliable than lower-accuracy moves, such as Fire Blast, yet still have higher-power than other moves like Lava Plume.
Earth Power compliments Flamethrower very well. It deals with Pokemon that resist Fire-type moves, such as Rhypherior.
Stealth Rock is a good entry-hazard and should be used unless if you already have a SR setter. In this case, Yawn would be more effective and forces switches if used properly. Ancient Power is another move that can be used to deal with annoying Flying-types, such as Fletchinder.
Toxic is a good Status-move that cripples any walls, such as Alomomola.
A wall-breaking set can be done. For example, a good wall-breaking set would have the EVs: 252 HP / 252 Sp. Atk / 4 Def and the moves: Fire Blast, Earth Power, Ancient Power / Hidden Power [Grass] , Will-O-Wisp.
Rock Polish or Growth can be used on a sweeper-set, but Rock Polish still isn't good enough to raise its speed, while Growth doesn't give much of a boost (only one stage) and M-Camerupt is too slow to make any good use of it.