Cold Breath

You exhale a blast of cold air. Each creature in a 30-foot cone must make a Constitution saving throw. On a failed save, a creature takes 3d8 cold damage and can only move at half speed. The creature can make another Constitution saving throw at the end of its turn to end this effect.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 1d8 for each slot level above 2nd.