Saraswati

A unique Mangekyō Sharingan dojutsu used by Sasuke Uchiha of an alternate timeline to cause a target or many targets to use several times the amount of chakra without enhancing its preformance, causing them to effectively waste it. It can be used on oneself to use much less chakra, allowing one to use a taxing technique a lot more for less chakra. It also significantly shortens cooldown time for other techniques.