I Kill Who I want to Kill!
Item: Muscle Band
Knock Down/Aerial Ace
EVs: Mostly HP and Attack.
Stone Edge is a great stab move (no pun intended) other than its undesirable accuracy.
Dragon Tail gets rid of any unwanted foes without Suction Cups (You know who you are, Cradilly)
Earthquake and Knock Down create an amazing 2-turn combo.
But Aerial Ace does take care of fighting types not named Lucario. All this and a muscle band, and you've got the world's pickiest physical sweeper.
Dragon Claw could replace Dragon Tail, just incase Kingdra stops by for a kill. Avalanche could take care of bulky grounds not knowing of it. Hone Claws would not only boost the already high attack, but take away some of the accuracy problems of Stone Edge.