Umbral Sands

You release a stream of black, shadow-laced sand from your outstretched palm. The sand flows toward one creature you can see within range like dark smoke, dissolving into their eyes, mouth, and skin. The target must make a Wisdom saving throw. On a failed save, it has the Unconscious condition for the duration as the sand pulls them into a deep nightmare sleep. While Unconscious from this spell, the target takes 2d6 Psychic damage at the start of each of its turns as terrible visions flood its mind—whispers and images seeded by entities that feed on sleeping consciousness. This damage does not wake the target. The spell ends on a target if another creature uses its Action to shake the target awake, or if your Concentration ends. When the target wakes—either by being shaken awake or when Concentration ends—it has the Frightened condition until the end of its next turn as the nightmare echoes cling to its waking mind. A creature that doesn’t sleep, such as an Elf, automatically succeeds on the saving throw