Kurama

The Kurama clan (鞍馬一族, Kurama Ichizoku) is a clan of extremely skilled genjutsu users. This talent in genjutsu is due to the kekkei genkai that the clan possesses. However, once every few generations, a member of the clan will be born with such enormous skill in genjutsu that their illusions causes the brain to make anything that happens to the victim within the genjutsu physically real, allowing the clan member to potentially kill their opponents with genjutsu. The current leader of the clan is Shasui Kurama.