Echo of Finality

When you score a critical hit with Vyrmorrow, you may cast Echo of Finality as a bonus action (once per long rest).

Choose up to 3 creatures of your choice within 30 feet. Each must succeed on a Wisdom saving throw (DC = 8 + your proficiency + Strength modifier) or take 4d8 radiant damage and become frightened until the end of your next turn.

On a success, they take half damage and are not frightened.

Undead and dragons have disadvantage on this saving throw.