Synaptic Spear 2014

You send a spear of psychic energy at a creature within range. The target must make an Intelligence saving throw. On a failure, it takes 6d8 psychic damage and is blinded and deafened until the end of your next turn. On a success, it takes half as much damage and suffers no other effects.

When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d8 for each slot level above 4th.