Dark Cannon

Dark Cannon is Vanitas's Shotlock in Kingdom Hearts Birth by Sleep. As a extension of Vanitas, Vanitas Remnant can also use this Shotlock. In this Shotlock, Vanitas creates three crystals in a trigram formation, that project rays that fuse and become a giant beam of dark energy. Vanitas only uses this Shotlock in his final battle against Ventus.

Dark Link
While using Vanitas as a D-Link, Ventus's Shotlock is changed to a light based version of Vanitas's Dark Cannon, called Dark Link.