Temporal anomaly
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Having been brought to his personal future by the Time Lords, the Second Doctor explained to the Brigadier that he was a temporal anomaly. (TV: The Three Doctors [+]Loading...["The Three Doctors (TV story)"])
The Dalek Combat Training Manual, published by the Time Lords during the Last Great Time War, noted Oswin Oswald as an instance of Clara Oswald, a temporal anomaly who had been keeping the Doctor alive for centuries. (PROSE: Dalek Combat Training Manual [+]Loading...["Dalek Combat Training Manual (reference book)"])
