A silver streak flashes from you to a point you choose within range and then blasts out with freezing wind and ice into a small storm. Each creature in a 20-foot-radius Sphere centered on that point makes a Dexterity saving throw, taking 8d6 Cold damage on a failed save or half as much damage on a successful one.

Additionally creatures must make a DC10 constitution saving throw or be frozen for one turn.

Using a Higher-Level Spell Slot. The damage increases by 1d6 for each spell slot level above 3.