vecna's annihilation

A beam of dark energy forming a line 200 feet long and 5 feet wide blasts out from you in a direction you choose. The beam stops when it impacts a creature, object, or creation of magical force, such as the wall created by wall of force.

If the beam reaches a creature, they must make a Dexterity saving throw. On a successful save, the beam passes by the creature, and continues until it reaches another obstacle. On a failed save, the beam impacts the creature, and they take 20d12 +40 force damage. The target is annihilated if this damage leaves it with 0 hit points.

An annihilated creature and everything it is wearing and carrying, including magic items (but not artifacts), are reduced nothing. The creature can be restored to life only by means of a true resurrection or a wish spell.

This spell automatically annihilates a Huge or smaller object, including magic items (but not artifacts), or a creation of magical force. If the target is a Gargantuan object or creation of force, this spell annihilates a 50-foot- cube portion of it.

When this spell annihilates a creature, object, or creation of force, all creatures within 15 feet of that target must succeed on a Dexterity saving throw, taking 6d6 radiant damage on a failed save, or half as much on a successful one.