Cold Snap

You are briefly enveloped in an icy mist, and in a flash you unleash a wave of freezing cold energy from your body that explodes into piercing shards of ice in a 15-foot radius. All creatures within 15 feet of you must make a Constitution saving throw, each creature takes 2d6 piercing damage and 5d6 cold damage on a failed save. In addition, creatures of Large size or smaller are frozen and considered paralyzed until the end of their next turn. On a successful save, the creatures take half as much damage but suffer no addtional effects.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, both piercing damage and cold damage increase by 1d6 for each slot level above 4th.