Demonic Illusion: Toad Confrontation Chant

Demonic Illusion: Toad Confrontation Chant is a sound-based genjutsu passed down on Mount Myōboku. Because learning it requires many long years of training, only the Two Great Sage Toads, Fukasaku and Shima, have the skills to perform it.

Usage
It is said to be the most powerful genjutsu in their arsenal. It is immensely powerful and only has to reach the target's sense of hearing to be a success. Even if there are several hundred targets, they are completely disconnected from each other. Inside the genjutsu world, the targets are surrounded from all sides by four toad samurai, with their mind and body completely sealed between their hands in an illusionary cube of water. The four unmoving toads won't lift the complete binding until the user gives the order. After the enemies have been caught in the genjutsu, all that is left to do is to strike the finishing blow in the real world, with Mount Myōboku's secret which are driven into the targets' hearts like a wedge.

Drawbacks
Despite this technique's great power, it takes some time for the users to synchronise melodies, and since it uses sound, it gives away their location, allowing opponents to attack them while it is being prepared. It also makes Shima and Fukasaku's throats dry, meaning it cannot be used repeatedly.