Ninja Art: Poison Injection Needle

By making the required hand seals and molding their chakra the user will concentrate poison in the tip of their index finger and then the user will sharpen their nail and stab into the back of the targets kneck to inject the poison. The potency of the poison various from the users requirements. They can inject a body paralysis poison or merely a toxic poison to slowly kill them. The technique however requires skill to deploy and is generally used in silent attacks rather than full on battles.