Searing Equation

1st-level enchantment (warlock, wizard)

Casting Time: 1 action
Range: Self (15-foot cone)
Components: V, S
Duration: Instantaneous

This spell causes you to briefly go into a magical trance and whisper an alien equation which you never fully remember once the action is complete. Each creature in a 15-foot cone must make an Intelligence saving throw. A creature takes 3d4 psychic damage and is deafened for 1 round on a failed save, or half as much damage on a successful one. In addition, at the end of its turn a creature deafened by this spell takes 1d4 psychic damage.

Creatures who are unable to hear the equation, immune to psychic damage, or who have an Intelligence score lower than 4 are immune to this spell.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, creatures are deafened for one additional round for each slot level above 1st.