|Use||To kill demonic entities|
|Powers||Can kill demons, hellhounds and other demonic entities|
|Location/Status||With the Winchesters|
The Demon-Killing Knife, or Ruby's Knife, is an ancient knife that was created by the Kurds which possesses the power to kill demons, hellhounds and other demonic entities. Though it somehow came into the possession of Ruby, it eventually passes onto Sam and Dean Winchester, who use it as their most common means of killing demons.