Cold Snap

You attempt to flash freeze a creature within range. The target must make a Constitution saving throw. On a failed save, the target takes 5d10 cold damage, or half as much damage on a successful save. On a failed save the target is restrained by frigid ice until the spell ends. The creature can repeat the saving throw at the end of each of its turns, ending the spell on a success.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d10 for each slot level above 3rd.