Ashad's Cyberfighter

The Lone Cyberman made use of a ship. After time hopping to 1816, the Cyberman transmitted his signal back to his ship, creating a tear in reality which threatened to destroy the Earth of that time. He stopped when he was given the Cyberium by the Thirteenth Doctor, proceeding to return to his future time period. (TV: The Haunting of Villa Diodati)