Historically, the Sentinel has been a person who protects a village against threats of any kind. To safeguard not only it's people, but its homes and lands. A oath-bound guardian empowered by the spirit of a location.

At times these powers simply manifest within a person who has taken up this role on their own, where such oaths are already present in the spirit and heart of a person. At other times a Power That Is might manifest and present such responsibilities and powers upon someone they might think capable and worthy of such a role.