When a rabbi attempted to create a small guardian Golem using the word 'emeth' (truth) during a time of great peril, the spiritual energy attracted and merged with a mysterious winged entity from the forests surrounding the Jewish settlement. The resulting creation retained the truth-seeking purpose of a Golem but manifested in a form capable of flight and foresight, becoming an invaluable sentinel for those who protect the community's legacy.

The Emeth Mothman possesses the ability to perceive imminent threats through a form of prophetic vision, sensing disturbances in arcane energies up to seven days before they manifest. It can travel swiftly between physical and spiritual realms, leaving behind traces of clay dust that form warning symbols when it has delivered a prophecy. Though it cannot speak, it communicates through imagery and emotions that flood the minds of those it chooses to warn, often leaving recipients with an unshakable sense of either dread or hope depending on what it has foreseen.

The Emeth Mothman serves as both harbinger and scout for the Golem Guardians, flying ahead to identify threats to sacred sites and returning with warnings that allow Ezra Katz and his followers to prepare defenses rather than merely react to dangers. Its prophetic nature makes it particularly effective at countering the Arcane Seekers' covert operations, as it can sense when forbidden rituals are being prepared even before they begin.