Comet Crash

A massive frozen comet plummets to the ground at a point you can see within range.  Each creature in a 50-foot-radius sphere centered on a point you choose must make a Dexterity saving throw. The sphere spreads around corners. A creature takes 40d6 cold damage and 40d6 bludgeoning damage on a failed save, or half as much damage on a successful one.

The spell damages objects in the area and freezes freezable objects that aren't being worn or carried.

In addition, the spell summons 10 ice mephits which act as allies to you and your companions from the comet's area after it has dealt its damage, which remain until they are killed.