thorn dart

on a hit 1 target, you can see within range is wrapped in thorny vines until the end of the target´s next turn 

when the target moves it must make a Constitution saving throw with a DC of 10 and on a failed save the target takes 1d4 piercing damage per 10 ft it moves on a successful save it takes no damage 
at higher levels, the damage is increased by 1d4 per ten feet for every level above 0