GenJutsu

GenJutsu: Genjutsu ("Illusion Techniques") are techniques that use the chakra in the victim's nervous system to create illusions; an advanced intellectual Ninjutsu. Genjutsu techniques are notably easier to execute and counter for users of high intelligence, like Nara Shikamaru, good chakra controllers like Haruno Sakura, and Sharingan users like Uchiha Sasuke. The most commonly seen Genjutsu is simple creation of phantasms that cause the targeted person to hear, see, smell, taste and feel things that are not actually there in order to manipulate them; other applications of Genjutsu are rare.