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|Powers= Can kill most [[demon]]s, humans, and [[hellhound]]s.
|location= Currently in [[Sam]] and [[Dean]]'s possession.
|episodes= '''First Appearance:''' [[3.01 The Magnificent Seven]]<br>'''
Last Appearance:''' [[12. 12 Stuck in the Middle (With You)]]
===[[12.12 Stuck in the Middle (With You)]]===
While attacking [[Ramiel]], Sam attempts to kill him with Ruby's knife to no effect as he is a [[Prince of Hell]]. Sam later uses the knife to kill one of [[Crowley]]'s demons.