Yin Release: Obsidian Blade

After weaving the needed hand signals, the user extends their thumb, index and middle fingers and channel Yin chakra into them. Afterwards, the user can create a self-sustaining burst of black chakra looking similar to a double-sided blade. True to its name, this technique enables the user to slash at their opponents and block attacks. An added effect this jutsu has is that it can pass through opponents harmlessly during an attack, but the target's mind and body is corrupted by the chakra, causing them to suffer short but intense bouts of mental damage and slight loss of muscle control. The 'slashes' can stack for increased effect, causing most opponents to pass out from mental breakdown, which can be permanent if the user wills it. Also, if the need arises, the blade can become solid and actually slice into opponents, which is also coupled with the mental-damaging effects. However, this takes up twice as much chakra as with the blade in chakra form.