Bringer of Darkness

Bringer of Darkness was a title which the Tenth Doctor applied to himself while facing a rabbit, which he thought was a Zygon. (TV: The Day of the Doctor) Captain van Volk referred to the Twelfth Doctor as "Doctor Bringer-of-Darkness", (COMIC: The Fractures) and the Twelfth Doctor later referred to himself with the epitaph. (COMIC: Invasion of the Mindmorphs)