Expelliarmus

When cast, the target makes a Strength(Athletics) check or Dexterity( Acrobatics) Check against your spell DC . On a failure, the object will fly from the target’s grasp up to 10 feet in a random direction determined by the Dungeon Master and takes 1d4 force damage At higher levels.

For every level higher than 2nd, the damage increases by 1d4 of force damage. (lvl 3 + 5feets; lvl4+1d4..)