Dark Side control

This jutsu allows the user to control his/her dark side freely and use its power at will as described earlier dark side increase's the user's chakra significantly almost at the level of a tailed beast,also it increase's the physical strength and speed and the endurance is raised above human levels.Dark Side can also strengthen one's jutsu however if dark side is not controlled it may destroy the user's body.This technique was first used by Sayotsu Uzumaki however there are many more characters who can use this technique as well.