In one fluid motion, slash the air with your arm, causing a burst of cutting wind to ripple forwards. Choose one or two creatures you can see within range. If you choose two, they must be within 5 feet of each other. A target must succeed on a Dexterity saving throw or take 1d10 slashing damage. An object hit by this spell will be sliced if it isn't being worn or carried. 

This spell's damage increases by 1d10 when you reach 5th level (2d10), 11th level (3d10), and 17th level (4d10).