Wait, I have a really good idea right now. Above post might mean this is too late but i have one more submission.
Landorus @ Life Orb
Trait: Sand Force
Naive Nature (+Spe, -SpD)
252 Atk/ 4 Def/ 252 Spe
-Gravity
-Earthquake
-Hidden Power Ice
-U-Turn
This thing is an absolute beast. A lot of people will need to discuss when figuring out a pokemon to switch in to this massive truck as EQ still hurts regardless of sand. It's most common switches get nailed to the ground by Gravity. Gravity Landorus is an incredibly hard poke to counter and is the reason i think theorymoning on countering this poke would be interesting.
Oh Yeah, if this is too late; i vote for
SubPetaya Empoleon.