Bonk

With a downward swipe of your finger a target within range is struck over the head by an invisible force. Make a ranged spell attack against the target. On a hit, the target takes 1d4 non-lethal force damage as an invisible object strikes them over the head with an audible and comical hollow "bonk" sound effect. A creature damaged by this spell may immediately use their reaction to make a saving throw against the charmed with advantage.