Arctic blast

A gust of arctic wind forming a 40 foot cone blasts out from you in a direction you choose. Each creature in the cone must make a constitution saving throw. A creature takes 8d6 cold damage on a failed save, or half as much damage on a successful one.
The ice freezes any liquids in the area that aren't being carried.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for each slot level above 3rd.