Warden Eternal

The Warden Eternal is a Forerunner Promethean construct that considers itself the "keeper of the Domain and her secrets". During the Battle of Sunaion, the Warden told Spartan Jameson Locke that John-117 had been granted access to a nearby Guardian, though such permission was denied to Locke and his team.

List of appearances

 * Halo 5: Guardians