Increases Break Intensity by 88. Seals Arc: Black Tome with two chains by default. Unleashes 1 chain each time any character on the team casts a Support Skill. Makes Arc: Black Tome available when all two chains are unleashed. Arc: Black Tome — Summons the Black Tome for 20s. Designates an enemy every 5s. Increases the wearer's Chaos DMG dealt to designated enemies by 36%. Deals Chaos DMG equal to 320% of the wearer's ATK to designated enemies when they take Break Damage.