Kunai

Kunai, along with the shuriken, are one of the most basic ninja weapons. It is a black dagger designed for thrusting and stabbing, though it can still do some damage if thrown despite not being designed for it, and is about the length of one's hand. Many more commonly attack by attaching an  to the handle of the kunai. The kunai is usually thrown so that it lodges in an object near the target, and then the explosion from the attached tag destroys the target. Shinobi can also use to  the cutting edge of the blade and can use it to increase its range, also.

Certain shinobi incorporate the use of Kunai into their signature techniques, like Contract::Densetsu, who could summon numerous explosive tag-laden kunai to complete his renowned technique.