Bollux's Air Slash

Create a thin, concentrated stream of air from your hand as your arc it in front of you, slashing the area in front of you. Make a single melee spell attack against all targets in a 5ft cone in front of you. On a hit, the target(s) takes 1d6 force damage.

The spell's damage and range increases by 1d6 and 5ft when you reach 5th level (2d6; 10ft cone), 11th level (3d6; 10ft cone), and 17th level (4d6; 15ft cone).