Ultimate Demon Sword

Origin
During the Demon Wars, Sidkami easily slay anybody who crossed him and battled, he got tired and created a Sword called the Demon Sword he also placed a powerful demon inside named Waru who became quite known, Sidkami being the strongest being during this time, would make a plan in where Crona would recieve this sword and become powerful. This sword had taken so many souls it could make a planet of souls, later on in time Kanji Kono had gotten the Death Sword in which if it touched you, than you would automatically die. Kanji got word that the Demon Sword was out there. He traveled and got permission from his Dad to fuse the Demon Sword with the Death Sword creating the Ultimate Demon Sword.

Creation
It cannot be created again but it was made by Sidkami by using many Demons blood and his blood, making it quite powerful, he placed a powerful Demon inside and it would also be help to the user. During this time he also had the idea of placing black blood inside and did. Kanji many many many years later fused this sword with the Death sword with the help of the Witchard.

Powers and Abilities

 * Enhanced Defense: The Demon Sword has nearly, if not the same durability as the best sword in the world. They are capable of blocking fierce attacks.
 * Enhanced Strength: The level of strength remains on the same terms as the defense. A Demon Sword is powerful enough to make a normal Weapon split in half with a single blow from inflicting so much damage. It has also been show to be able to shoot through difficult objects such as metal and almost to the core of the world.
 * Soul Devouring: The Demon Sword take total carnage on Souls, devouring them in an instant. One moment, hundreds of Souls could be present, the next, eaten. They eat Souls by literally sucking them in all at once. A Demon Sword also has a heightened hunger for Souls than usual.
 * Madness: The Demon Sword has fallen to Madness because of Crona the embodiement of Madness and fear and even emit their own Madness Wavelength.
 * Death Touch- Being touched by this sword the opponent will die immediately and his soul will be devoured by the sword or his body will dissolve.

Notable Ultimate Demon Sword

 * Waru- A demon placed into the sword by the great Demon Sidkami and is powerful now due to being fused with the Death Sword.