Warden Eternal

"I am the Warden Eternal. I stand in service to Cortana."

- The Warden Eternal addressing Fireteam Osiris

The Warden Eternal is a Forerunner entity who considers himself the keeper of the Domain.

Overview
While he possesses a singular intelligence, the Warden is capable of controlling numerous physical bodies. His mechanical armature is tall and humanoid, and is segmented to numerous disparate components that are not physically connected. Like the Promethean Knights, he has a "face" with a glowing skull inside. Warden Eternal wields a unique hardlight blade, that sports two blades as opposed to the usual single blade the Promethean Knights use. He is seemingly capable of immobilizing opponents with constraint fields.

After the human smart AI Cortana was uploaded into the Domain in the wake of the destruction of the Mantle's Approach, the Warden became convinced that Cortana and other human AIs were meant to inherit the Mantle. Consequently, he began serving Cortana to aid her in her ascension.

List of appearances

 * Halo 5: Guardians