Comet of Frost

You summon a small sphere of pure frost that crashes onto a point you can see in an explosion of ice shards. Each creature in a 20-foot-radius sphere centered on that point must make a Constitution saving throw. A target takes 6d6 cold damage on a failed save and is considered grappled. On a successful save, a target takes half as much damage .

The frost spreads around corners. It freezes objects over in the area that aren't being worn or 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.