Missy's device

Missy's device was a piece of multi-purpose technology owned by.

She used the device to vapourise individuals, including Dr Chang, (TV: Dark Water) Seb and Osgood. It was also capable of taking photographs, or selfies. (TV: Death in Heaven)

The device later fell into the hands of Clara Oswald, who was prepared to use it to kill Missy out of revenge for what happened to her boyfriend Danny Pink. The Twelfth Doctor took the device from her and told her that he would save her by doing the deed himself. Instead, Missy was shot from afar by the Brigadier in Cyberman form. (TV: Death in Heaven)

Missy later used a new and upgraded version of the device to create a Time Stop on all the planes around Earth, making them appear to the world as "frozen". She contacted UNIT with the device. She also vaporised two UNIT guards with it to make the point that she hadn't "turned good". She later released the planes. (TV: The Magician's Apprentice)