Kronos stone

Arguably the most powerful artifact in the Xenaverse, the Kronos Stone is named for Kronos, king of the Titans and father of Zeus. Autolycus and Hercules discover that the Kronos Stone can manipulate time. Later, Zeus reveals to Hercules that it is the Kronos Stone which gave him the power to overthrow and imprison the Titans.

Appearances

 * H:TLJ: "The End of the Beginning"
 * Hercules and Xena - The Animated Movie: The Battle for Mount Olympus

Background
There is some historical/mythological precedence for a Kronos Stone. Kronos or Cronos was the leader of the Titans and the father of the first generation of Olympian gods. For fear that his children would usurp his rule, after each one was born, Kronos would devour them. When Zeus was born, Kronos' wife, Rhea, hid the child and presented Kronos with a stone. Later, when Zeus killed Kronos, the stone was taken by two eagles to the "centre of the world." In fact, there are multiple Kronos Stones or Omphalos Stones. The most famous was at the Oracle of Delphi.