Tempest
Weapon (scimitar), legendary (requires attunement)
You gain a +3 bonus to attack and damage rolls made with this weapon.
While wielding Tempest, your movements are as one with the wind. Your movement speed increases by 5 feet. Additionally, you can cast Gust of Wind at will without expending a spell slot.
As an action, you can unleash a violent wind flurry in a 60-foot cone, striking all within with razor-sharp gales. Each creature in the area must make a Dexterity saving throw (DC 18), taking 10d8 magical piercing damage on a failed save, or half as much on a success. Once used, this ability cannot be used until it recharges at dawn.