Zanna-killing knife

The Zanna-Killing Knife, is a specially enchanted knife that was created by the Romanian witch which possesses the power to kill Zanna. At some point, Reese was given by an unknown Romanian witch one of it, which helped her in her quest to hunted down Zannas. After Sam, Sully, and Dean encouragements, she abandoned it, and later picked by Dean for good.

Physical Appearance
At first glance, the knife appears to be an ordinary hunting knife with a silvery metal blade and a wooden handle. However, upon closer inspection, some Romanian Cyrillic sigils can be seen engraved on the blade. A symbol resembling integrated three whirlpools also engraved on the knife's hilt.

Appearance

 * Season 11
 * Just My Imagination