Special Atk
This is that magical set for those wizards with a glock that benefit from rapid fire A-pressing. Which applies to specifically 2 pokemon: Eldegoss, and AVeil Ninetales (Mewtwo Y has his own Emblem Set over here.) Good chunk of flat HP as always, white4 for scaling, and of course the red7 for crazy autos.
(Pair with X-Attack for funny -and effective- results!)