Hand of Omega

Remote stellar manipulator created by Omega to turn a star into a supernova. It was endowed with a rudimentary form of intelligence. The First Doctor left the Hand of Omega on Earth in 1963, intending to bury it. It was located by both the Daleks and the Imperial Daleks, who travelled back in time to fight for its possession. The Seventh Doctor did manage to bury it, but it was dug up by Ratcliffe. The Seventh Doctor allowed the Imperial Daleks to seize it, then manipulated Davros into using it. The Hand of Omega turned Skaro's (or Skaro II's?) sun into a supernova and destroyed Davros's ship. Its ultimate fate is unknown