I got a pretty awesome set here
Trait: Rough Skin
EVs: 252 attack, 252 speed, 4 HP
Hone Claws- Beefs up attack and sharpens accuracy
Dragon Rush- STAB, almost never misses with Hone Claws
Iron Tail- Fairy coverage, almost never misses with Hone Claws.
Earthquake- For those of you who don't know, STAB, high power, 100% accuracy
Rough Skin+ Rocky helmet will make any contact moves have pretty high recoil for the opponent. You can replace Rocky Helmet with Garchompite if you want a mega on your team, but if you do, I recommend using an ally with Sand Stream to take advantage of Sand Force. Normally when using this set, set up Hone claws when you have the chance and start sweeping. Mawile won't be KO'd by iron tail since its also a steel type? No problem! Earthquake's got you covered.