Enialeigh's Eternal Arrow (Arteria)

You fire a legendary arrow that pierces reality itself. Choose a point within range, and all creatures within a 60-foot radius must make a Dexterity saving throw. On a failed save, a creature takes 20d12 force damage and is banished to a random plane of existence for 1 minute. On a successful save, a creature takes half damage and is not banished.

While banished, creatures are incapacitated, and at the end of the minute, they return to the spot they were banished from. If there is no available space, they are shunted to the nearest unoccupied space.

If a creature is reduced to 0 hit points by this spell, its body and soul are permanently erased from existence, preventing resurrection by any means other than a Wish spell.