The Auditor's sword is a signature weapon of the Auditor used in Madness Abrogation. It has a similar design to the iron sword, but with a black blade that glows red. In the beginning of the episode, the Auditor summons this sword and waves it as he summons pillars from the ground. The Auditor summons this sword again, but in a larger form, to combat Hank and Sanford in the final scene before his apparent death.