Elemental Barrage

By drawing forth power from the elemental chaos, and forcing order upon it, you manage to create a torrent of elemental energy. Make an attack roll, and on a hit the target takes 3d6 fire, 3d6 cold, 3d6 slashing, and 3d6 bludgeoning. If this attack results in a critical hit it deals an additional 1d6 of each type. When cast using a spell slot of eight or higher this spell can target two creature, making attack rolls for each attack.