Tests the wielder's emotional balance and clarity of mind.

While there is no prominent single media title exactly matching " The Five Seals

(Wrought on the Crossguard) “Only the quiet mind may hear the blade’s truth.” The first seal suppresses the sword’s psychic wail—a deafening chorus of fallen stars. To break it, one must endure complete sensory deprivation for seven days. Most aspirants go mad before the third.