Elemental fury

Choose up to (or three of the same)3 elements of which you have a vial. Target a point within 160 ft. an explosion of energy rips out from that point with a 60 ft radius. creatures in this sphere must make a dexterity throw. On a failed save they take 1 d12 elemental damage per vial used, and of that damage. They take half that on a successful save.