Air Peircer

A line of sheering wind 120 feet long and 5 feet wide emanates from you in a direction you choose. Each creature in the line must make a Dexterity saving throw. A creature takes 1d6 piercing damage on a failed save, or half as much damage on a successful one.

This spell's damage increases by 1d6 when you reach 4th level (2d6), 8th level (3d6),  12th level (4d6), and 16th level (5d6).