Phantasmal Killer

Choose one creature you can see within range. The target must make a WIS save or become frightened by a private nightmare. At the end of each of its turns, it repeats the save. On a failed repeat save, it takes 44 (8d10) psychic damage; on a success, the effect ends.

This power has its own stable page so it can be linked from any character, item, location, story post, bargain, curse, or future reward.