The quiet breeze foreshadows the coming cataclysm.

With a sweeping gesture you unleash an invisible scythe of wind in a 30-foot cone. Creatures within the area must make a Dexterity saving throw. If they fail, they take 8d8 slashing damage. This damage ignores the resistances of unattended objects, cutting cleanly through trees and walls. At Higher Levels: When you cast this spell using a spell slot of 5th level or higher, the slashing damage increases by 1d8 per slot level above 5th.

Source: Compendium of Forgotten Secrets