Banshee Θ

You unleash a mournful, necrotic wail that chills the soul of a creature you can see within range. The target must succeed on a Wisdom saving throw or take (4d8) necrotic damage and have its movement speed reduced to 0 until the end of its next turn. On a successful save, the target takes half damage, and its movement speed is not affected.

While the spell is active, the area around the target (a 10-foot radius sphere) becomes filled with an eerie wail, audible only to the affected creature.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the necrotic damage increases by 1d8 for each slot level above 3rd.