Double/Triple Fridge and Freezer!(And sometimes TV)
EVs: 252 S.Attack, 252 Speed, 6 Hp
Blizzard is STAB and it hits 2 Pokemon at once, and has a Freezing chance. Discharge is STAB and hits multiple Pokemon, and it has a 30% Paralysis chance. Hex is STAB and makes use of the high status chance. Reflect/Light-screen are for team support depending on which one your team needs more.