Yondu Seal

The Yondu Seal is a unique hand sign and jutsu produced by the members of the Independent Shinobi Union.

Overview
By forming the hand sign of a finger gun with an outstretched thumb and pointer finger, the user can then form a powerful wave of concentrated chakra, that can nearly instantly kill most targets with one hit.

Due to the immense amount of chakra and chakra control needed to use this jutsu with only one hand sign, only the jonin of the ISU are able to use this jutsu. The jonin also only use this jutsu as a last resort as it can quickly tire users - though Kenan has been able to use the Yondu Seal several times in a row, though this is most likely since he is already familiar with his kind of jutsu from the Air Palm.