Sailor Saturn's powers are mostly based on Roman mythology, in which Saturn is the god of the harvest. In Western astrology, the planet Saturn is known as "the Greater Malefic", "the Old Taskmaster" and "the Grim Reaper." Calling herself a "harbinger of death", referred by others as the Forbidden Guardian, Saturn's primary role is execute total annihilation and is normally summoned as a final resort when all hope is lost. Such an example is Saturn wiping out what remained of Silver Millennium after Metaria destroyed most of it, which made the Outer Guardians greatly fear her as they did not fully understood her purpose at the time. Saturn's signature weapon is her Silence Glaive, which is referenced by Sailor Neptune as the "scythe of the Goddess of Death,". This is made apparent as a single swing of the Silence Glaive is enough to destroy an entire world.