Signum

Nanoha A's Signum enters the story when Vita has attempted to steal Nanoha Takamachi's Linker Core (a mage's source of magic) for the Book of Darkness. Since the arrival of Nanoha's cavalry, Fate Testarossa and Yūno Scrya, Vita is cornered and Signum must come to her rescue with Shamal. The Wolkenritter overpower the TSAB troupe with their use of high-powered magical cartridges, and Signum manages to snap Fate's staff, Bardiche, in half. The battle ends with Shamal finally managing to get Nanoha's Linker Core and N…