Key of Limpidity

[SP: 4][CD: 12s] Slashes once, dealing 1 x 120.1% (200% at 5★) ATK of Lightning DMG. Can block incoming attacks while the attack animation plays. A successful block produces an AoE lightning shock, dealing 9 x 35% ATK of Lightning DMG and increasing the character's Lightning DMG by 12% (20% at 5★) for 8s. Triggering it again refreshes its duration. Herrscher of Origin equip bonus: Slashes twice, dealing 250% ATK of Lightning DMG. Can block incoming attacks while the attack animation plays. A successful block triggers Time-frozen Domain that pauses all skill timers and the stage timer, and connects into Chain Slash that deals 1 x 50% + 50% + 170.1% (250% at 5★) ATK of Lightning DMG. This ATK is registered as Basic ATK, charges 1 stack of Twisted Origin for Wing Blades, and, when its last slash hits, releases an extra Sin of Killing. Chain Slash has a CD of 5s.

Deal 12% (20% at 5★) more Lightning DMG. Triggering Time-frozen Domain grants 1 stack of Inner Foresight, up to 3 stacks. Each stack increases Total DMG from Basic/Combo/Charged ATKs by 3% (5% at 5★) for 7s. Triggering it again refreshes its duration. When weapon active blocks successfully, recover 2 SP.
Herrscher of Origin equip bonus: If weapon active does not block an attack when it is being cast, it fully restores Mind Body Insight when it ends. Additionally, tap [ATK] when sheathing the blade to connect into Combo ATK.