A Starbreaker was a type of Gallifreyan starship from the times of Rassilon. A fleet of starbreakers, led by the flagship Aeon, worked for the transformation of the star Qqaba into a black hole, in order to achieve time travel. They were protected by stasis haloes.
Omega controlled his own starbreaker, (COMIC: Star Death [+]Loading...["Star Death (comic story)"]) as did the Other. (PROSE: The Infinity Doctors [+]Loading...["The Infinity Doctors (novel)"])
In the incident of Omega's sacrifice, Fenris sabotaged the statis haloes, causing Omega's starbreaker to be destroyed. (COMIC: Star Death [+]Loading...["Star Death (comic story)"])
One of the Time Lord Galleons of ancient Gallifreyan history was named "Starbreaker". (AUDIO: The Road Untravelled [+]Loading...["The Road Untravelled (audio story)"])