You send a hypnotic telepathic message of magical words to one creature of your choice within range. The target must make an Intelligence saving throw. On a failed save, it takes 3d6 psychic damage and is stunned until the beginning of its next turn. On a successful save, the target takes half as much damage and isn't stunned.

At Higher Levels. 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.