Wobbuffet (M) @ Focus Sash
Trait: Shadow Tag
EVs: 252 HP / 252 Spd
Naive Nature (+Spd, -SDef)
He gets hit hard and returns with his counter or mirror Coat Power,
Lowering Special Defense so hopefully your opponent will do more damage ( But a Max Hp hit on him OHKO's pretty much anything ) And thats my most used Ev's and Nature.