Player's Handbook (2014)
1-level Enchantment
You whisper a discordant melody that only one creature of your choice within range can hear, wracking it with terrible pain. The target must make a Wisdom saving throw. On a failed save, it takes 3d6 psychic damage and must immediately use its reaction, if available, to move as far away from you as it can, using the safest route. On a successful save, the target takes half as much damage and doesn’t have to move away. A deafened creature automatically succeeds on the save.
When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d6 for each slot level above 1st.