In the world of Naruto, Genjutsu is less common than ninjutsu or taijutsu, but it's no less useful. Genjutsu allows users to create illusions that range from mere images to painful, world-enveloping nightmares.
Who are the best genjutsu users in Naruto? The ultimate attack in Naruto Shippuden, Infinite Tsukuyomi, is the work of one of the strongest genjutsu users, Madara Uchiha. However, there are plenty of others beyond Madara.
Most members of the Uchiha clan are adept at this ability, and lesser-known users like Yakumo Kurama, who can create illusions powerful enough to impact the real world, are worth noting too.
As a mangekyo sharingan user, Itachi Uchiha has incredible genjutsu prowess. His special technique is Tsukuyomi, which traps his targets' minds in a false world filled with illusions of his choosing.
Itachi can use this for any purpose, from conveying information to mental torture.He used Tsukuyomi on Sasuke after slaughtering the whole clan, forcing the eight-year-old to relive what his brother had done thousands of times.
This deranged act cements Sasuke's desire for revenge.
Though he only appears in flashbacks, Shisui Uchiha has one of the most formidable genjutsu abilities in Naruto history.
Shisui's mangekyo sharingan allows him to control other people's thoughts in such a subtle manner his targets don't even know it's happening.
Originally, Shisui was supposed to use this ability to quell the Uchiha uprising, but that plan was scrapped in favor of the massacre on the grounds it was only a temporary solution.
Madara Uchiha uses ninjutsu more than genjutsu, but he's also one of the most powerful ninja in history, no matter the technique. He's able use the sharingan to its fullest extent, and he can cast the Infinite Tsukuyomi.
When the Infinite Tsukuyomi reflects off the moon, it creates a permanent illusion that traps the entire world in a dreamlike state, allowing Madara to do whatever he wants with their helpless bodies.
Gengetsu Hōzuki is the second Mizukage. Though long dead by the time the series begins, he and many other characters are brought back during the Fourth Shinobi World War.
By combining genjutsu with summoning techniques, Gengetsu can bring forth a giant clam that spews a thick mist. The haze creates wide-scale illusions that can't be broken unless the clam is killed.