Cacturne@ Life Orb
Quiet (+Spec. Atk, -Speed); Sand Veil
252 HP, 252 Spec. Atk, 4 Spec. Def
Nasty Plot
Focus Blast
Dark Pulse
Energy Ball
get rid of growth, it takes too long get set up with it, and thus waste trick room turns, whereas nasty plot is a one turn +2 SpA set up.