Demonic Illusion: Temple of Bloody Souls

The Ultimate Blood related Genjutsu: Demonic Illusion: Temple of Bloody Souls creates a world where the person casted upon witnesses the minds of murderers. They see the dead bodies and here the vicious thoughts of the criminals. The sheer terror of the jutsu means it was given forbidden status by the Second Hokage: Tobirama Senju. The jutsu eventually drives the user insane and even after it's broken the effected are nothing but shells. They often get submitted to asylums because of the nightmares. This jutsu can only affect one person at a time yet it is unbreakable by the person it is casted upon. The users chakra breaks from their body and starts to affect the brain chemistry in the opponents mind meaning no link can be connected to them. The downside of the technique is that it requires full concentration and a clear line of sight. This does mean it is a perfect assassination genjutsu.