Shuriken are one of the many weapons of the ninja. They can be dipped with poison and are usually star shaped. Tenno (Yamato's elder brother) gets killed by one, thrown by Dragon Eye. However, shuriken are mostly used for distraction. It is rare for a shuriken to be accurate, although Tenzen proved to have uncanny skill with throwing shuriken, being able to throw five stars at once and have them all hit their target.