Freedom-Sworn is a 5 star Sword obtained from the Weapon Event Wish in Genshin Impact. It mostly appears along with Kazuha’s banner.

Revolutionary Chorale

A part of the “Millennial Movement” that wanders amidst the winds. Increases DMG by 10%/12.5%/15%/17.5%/20%. When the character wielding this weapon triggers Elemental Reactions, they gain a Sigil of Rebellion. This effect can be triggered once every 0.5s and can be triggered even if said character is not on the field. When you possess 2 Sigils of Rebellion, all of them will be consumed and all nearby party members will obtain “Millennial Movement: Song of Resistance” for 12s. “Millennial Movement: Song of Resistance” increases Normal, Charged and Plunging Attack DMG by 16%/20%/24%/28%/32% and increases ATK by 20%/25%/30%/35%/40%. Once this effect is triggered, you will not gain Sigils of Rebellion for 20s. Of the many effects of the “Millennial Movement,” buffs of the same type will not stack.