Yin-Yang Release: Harmony Arrow.

The final hand sign(Hidous' Kekkei Genkai hand sign) performed by placing the thumb, index finger and pinky finger of each hand together draws in air and combines it with chakra. It is then put under high pressure and forms a air row. This arrow is invisable but you can hear it move. Unfortunately it moves extreamlly fast and can deal larrge amounts of damage.