Colossal Aether Cannon

A continuous beam of cosmic power forming a line up to 1 mile long and up to 50 feet wide blasts out from you in a direction you choose. Each creature in the line must make a DC 30 Dexterity saving throw. A creature takes 150 force damage and 150 radiant damage on a failed save, or half as much damage on a successful one. If this damage reduces a creature to 0 hit points, the creature is atomized. An atomized creature and everything it is wearing and carrying, except magic items with a rarity of very rare or higher (including artifacts), are obliterated, leaving no remains. The creature can be restored to life only by means of a true resurrection or a wish spell.