Venom Shot

You hurl a ball of poison at a creature within range. Make a ranged spell attack against the target. On a hit, the target takes 1d8 poison damage and must make a Constitution saving throw. On a failed save, the target must move 10 feet away from you. 

Cantrip Upgrade. The damage increases by 1d8 when you reach levels 5 (2d8), 11 (3d8), and 17 (4d8).