Chidori

The chidori is kakashi hatake's first orginal technique.This technique required large amount of chakra to his hand.The amount of chakara is so great that it become visible.The high concentration of electricity produce a sound like chirping of many birds.Once a technique is completed, kakashi charges forward and thrusta the chidori into the target.This produces heavy amounts of damage that is usually fatal.Later on Kakashi taught it to sasuke uchiha.