You release a knot of psychic energy at one enemy. Make a ranged spell attack against the target. On a hit, the target takes 1d8 psychic damage, and it can't take reactions until the start of its next turn. (Based on Thunder Bolt from Deep Magic)
The spell's damage increases by 1d8 when you reach 5th level (2d8), 11th level (3d8), and 17th level (4d8).