Destruction Beam

A beam of red, twisting energy flashes out from your palm in a 5-foot wide, 300 feet in length. The beam pierces through all nonmagical material, leaving behind a perfectly circular hole. 

Any creature in the line must make a Dexterity saving throw or take 16d6+40 force damage. If a creature is reduced to 0 hit points by this spell, they, and all of their nonmagical equipment, are turned to dust. Creatures slain in such a way can only be returned to life by means of a true resurrection or a wish.

The beam dispels magical walls of force it comes in contact with, including those from the forcecage, tiny hut, and wall of force spells. If it dispels one of these effects, the beam does not stop, continuing to its full length.