With an open grimoire, you create a blade composed of wind around your hand. You can use it as a modified longsword, dealing 6d6 slashing damage. optionally, you can swing your hand in a wide arc, releasing the blade as a slicing wind attack. Each creature in a 15-foot cone must make a Dexterity saving throw. On a failed save, they take 3d6 slashing damage, or half as much on a successful save, however, the blade dissipates after this AoE Attack.

At higher levels: add 1d6 to both damage dice rolls.