Abyssal Blast

You hurl a beam of darkness. Make a ranged spell attack against one creature or object in range. On a hit, the target takes 1d6 Force damage and must succeed on a constitution saving throw or have the blinded and deafened condition for 1 round.

Cantrip Upgrade. The damage increases to 2d6 at level 5, 3d6 at level 11, and 4d6 at level 17.