Firstly, this technique requires the use of the Sharingan and direct eye contact. The opponent is caught in the illusionary world created by the user, and the victim will be tormented with the sensation of having spikes driven through their limbs, taking away their body's freedom. At the same time, the physical pain accompanying the illusion reveals the greatest use this technique has is primarily for torture.
References
- ↑ Third Databook, page 301
2.Although this jutsu requires direct eye contact,some powerful genjutsu users such as Itachi Uchiha can cast it by merely pointing at someone or looking at them.
