The Black Excalibur Sword is a combination of the Black Matter S

Example of how the sword might look.

word and Excalibur. It can be found in a hidden land of darkness. The sword was hidden by it's original owner claiming that "the swords power is to much for a mere human to wield."

It can cut through any object and cause instent death with a single scratch.

When unlishing it's untimate power it's weilder gets covered in a physical manifestation of the sword's dark energy. It is up to the user to be able to turn that dark energy into light energy. If the dark energy is not conquered, it can cause madness.

When an enemy is attacked and cut in any way by the sword, they will be engulfed by the darkness and killed. The pain will be intense.