The Knight Sword is Temujin's personal sword. Its normal appearance is that of a European-style short sword typically depicted being used by knights. However, the sword's blade can extend, thus becoming a full-length broadsword. Other than using the sword as-is, Temujin can channel gelel energy into the sword, drastically increasing his attack range and allowing him to perform various techniques with it, such as Raging Thunder. Temujin can also convert the Gelel energy into a beam of light, sending a signal to Haido's warship.