Arc Of Time

The Arc Of Time is a Lost Magic used by the Grimoire Heart Member, Ultear. It enables the user to control the time of any inorganic object. But a major weakness is that it can't control the time of any organic substance. An example is that Ultear could not manipulate the time and remove the Ice Shell as it is actually Ur's body. It was also taught by Hades to Ultear meaning Hades might know it.