This Costume is available by default and can be visible when Keats enters his transcended state.

Keats Costume Transcended artwork
Keats Costume Transcended screen

Other variations of the Transcended costume

Navigate Costumes & Cloaks

• Ellen:   NormalCloak of Sidhe Faery Cloak
Battlefield Cloak Cloak of the Deep Cloak of Dawn Cloak of Twilight Cloak of Midnight Sun
• Keats:   Normal Transcended