Brain Spike

You create an invisible spike that pierces the mind of a creature in range. The targeted creature can be behind total cover. A target must succeed on an Intelligence saving throw or take 1d6 psychic damage. Success or failure, the target doesn't know it has been affected by the spell, unless it is immune to the charmed, as the magic erases it's memory from the target's mind.

This spell's damage increases by 1d6 when you reach 5th level (2d6), 11th level (3d6), and 17th level (4d6).