Comet

You cause a comet to fall from the sky and crash to the ground at a point you can see within range. You must be outdoors to cast this spell.

The comet creates s 50-foot-deep, 500-foot-radius crater on impact. Any creature in that radius must make a Dexterity saving throw, taking 30d10 force damage on a failed saving throw, or half as much damage on a successful one. All structures in the crater are destroyed, as are all nonmagical objects that aren't being worn or held.

Requirement : Being able to cast 10th level spell