Carvanha @ Life Orb
Ability: Speed Boost
EVs: 236 Atk / 236 Spe / 36 HP, Def, or SpD
Protect / Aqua Jet
Life Orb boosts damage. Speed Boost is the crux of the set because it boosts Carvanha's mediocre Speed. The EVs are LCs Bread and Butter sweeper set. Adamant Nature maxes out the damage it will do, you don't need a Speed boosting nature because of Speed Boost. Flip Turn is a pivot move, and its STAB. Liquidation is STAB, and can lower Defense. Crunch is STAB, and can lower Defense. Protect lets you get in a Speed Boost. Aqua Jet may seem bad, but it can revenge kill when it comes in and can get a Speed Boost in. It can be situational though.