Once you reach rank 2 you'll receive the Back in the Saddle quest, which will lead to a
Legendary class - specific
weapon, Susanoo for Warlocks, Immobius for Titans, and Stillpiercer for Hunters.
What was
once known as the Devil Arm Force Edge, Sparda is a fully awoken
weapon that originally belonged to the
Legendary Dark Knight with the same name.