Oh dear god I never thought of this.
Soul-Heart + Chilling Neigh (+2 Sp. Atk per kill), Supreme Overlord (1.5× both offenses if last one standing), Adaptability (STAB=1.5×->2×), Flare Boost (1.5× Sp.Atk when Burned), Beads of Ruin (equivalent to 1.33× Sp. Atk)
Can someone run some calcs with this?