Mars

Kranz's weapon, Mars, is an Orichalcum knife, and one of the deadliest weapons there is.
 * Name: Mars
 * User: Kranz Maduke
 * Type: Orichalcum knife
 * Debut (Manga): Chapter 100
 * Debut (Anime): Episode 18

Appearance
Mars is a small pocket knife. It is entirely made of Orichalcum, with the number IV engraved on its handle.

Capabilities
Mars has a small button that, when pressed, causes the knife to vibrate at a dangerous velocity. It's sharpness also increases, enabling the weapon to cut through anything, as Kranz says, "Even if a sheet of steel is three centimeters thick, before Mars, it is a sheet of paper.

History
Kranz was given Mars after becoming a Time guardian.