Ninjas of Iga

They are Tokugawa's special and secret forces (as well as his bodyguards). They are very skilled ninjas (but not at level of Sasuke Sarutobi or Shindara for example).

- Murder of Three Flying Dragons
It is a secret technique: one or more ninja attack the opponent to distract and immobilize him (they are a "decoys"). Then another ninja launches a real attack to the opponent who now can not defend himself.