Empirical Overload

You target a creature and weave a wave of illusions. Make a melee spell attack against the target creature. On a hit, the target takes 1d8 psychic damage. If the attack hits, the next attack roll the target makes is made with disadvantage, as its senses are overwhelmed.

This spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).