Thundurus (M) @ Leftovers
Trait: Prankster
EVs: 252 Def / 252 SDef / 4 Spd
Bold Nature (+Def, -Atk)
- Thunder Wave
- Volt Switch
- Substitute
- Grass Knot
Tank / Annoyer.
Thunder Wave has priority into it, so auto para-hax, while having a priority substitute.
Volt Switch gets you out of there, sadly destroying your sub, you could easily use Thundebolt as a replacement though, Grass knot works great for rock types, ( Generally heavy ) Ground types, ( Generally heavy ) , And things like Swampert that resist Volt Switch, and can carry things
like Ice punch and Stone Edge.