Legend has it that this greatsword was forged by the hand of Ravenwood, who inherited the name of Boreas, prior to his ascension to knighthood.

R1: Indomitable Chivalry

Increase ATK SPD by 10%. Every time the equipping character's Normal Attack(s) hit opponent(s), when they cast their Elemental Skill, or when they begin their Charged Attack(s), gain 1/2/2 stacks of Four Winds' Hymn respectively: DMG dealt is increased by 7.5% for 4s. Max 4 stacks. This effect can be triggered once every 0.01s.
Additionally, when the party has the "Hexerei: Secret Rite" effect, each stack of Four Winds' Hymn also increases the equipping character's CRIT DMG by 7.5%.

R2: Indomitable Chivalry

Increase ATK SPD by 10%. Every time the equipping character's Normal Attack(s) hit opponent(s), when they cast their Elemental Skill, or when they begin their Charged Attack(s), gain 1/2/2 stacks of Four Winds' Hymn respectively: DMG dealt is increased by 9.5% for 4s. Max 4 stacks. This effect can be triggered once every 0.01s.
Additionally, when the party has the "Hexerei: Secret Rite" effect, each stack of Four Winds' Hymn also increases the equipping character's CRIT DMG by 9.5%.

R3: Indomitable Chivalry

Increase ATK SPD by 10%. Every time the equipping character's Normal Attack(s) hit opponent(s), when they cast their Elemental Skill, or when they begin their Charged Attack(s), gain 1/2/2 stacks of Four Winds' Hymn respectively: DMG dealt is increased by 11.5% for 4s. Max 4 stacks. This effect can be triggered once every 0.01s.
Additionally, when the party has the "Hexerei: Secret Rite" effect, each stack of Four Winds' Hymn also increases the equipping character's CRIT DMG by 11.5%.

R4: Indomitable Chivalry

Increase ATK SPD by 10%. Every time the equipping character's Normal Attack(s) hit opponent(s), when they cast their Elemental Skill, or when they begin their Charged Attack(s), gain 1/2/2 stacks of Four Winds' Hymn respectively: DMG dealt is increased by 13.5% for 4s. Max 4 stacks. This effect can be triggered once every 0.01s.
Additionally, when the party has the "Hexerei: Secret Rite" effect, each stack of Four Winds' Hymn also increases the equipping character's CRIT DMG by 13.5%.

R5: Indomitable Chivalry

Increase ATK SPD by 10%. Every time the equipping character's Normal Attack(s) hit opponent(s), when they cast their Elemental Skill, or when they begin their Charged Attack(s), gain 1/2/2 stacks of Four Winds' Hymn respectively: DMG dealt is increased by 15.5% for 4s. Max 4 stacks. This effect can be triggered once every 0.01s.
Additionally, when the party has the "Hexerei: Secret Rite" effect, each stack of Four Winds' Hymn also increases the equipping character's CRIT DMG by 15.5%.