Cold Snap

A bright light blue streak of energy flashes from your pointing finger to a point you choose within range and then breaks into a glacial cold. Each creature in a 20-foot cube centered on that point must make a Constitution saving throw. A target takes 5d8 cold damage on a failed save, or half as much damage on a successful one.

The cold spreads around corners. It freezes objects in the area that aren't being worn or carried, creating shards of ice. The area becomes difficult terrain for a number of rounds, equal to the caster's proficiency bonus.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d8 for each slot level above 3rd.