The Kyouji Clan were the most feared clan throughout the 5 great hidden villages, This was largely due to the immense power of the Pyuagan. They were known as the clan of Death because they would capture other clans with powerful jutsu or Kekkei Genkai and extract them and bestow them on children of their clan. Thanks to their Kekkei Genkai The blood Release they were known as the Clan Of War due to their ability to make every corpse a weapon. Also due to the ruthless personalities of many of the Kyouji Clan members. The Kyouji Clan is known for extremely powerful juinjutsu.