Dark Excalibur

Dark Excalibur sometimes known as the "Lost" or "Stray" Excalibur is the fragment of Excalibur that was thrown into the lake by the original Morgan Le Fay "never to be found again".

Summary
The lost eight fragment of Excalibur said to be known as the "Ultimate Wield". The sword was infused with demonic energy and dragon's blood making it useful in killing both angels, dragons, and devils.

The sword was the weapon used by the Original Satan in the first Great War.

The sword was said to be stolen by the original Morgan Le Fay and tossed into a lake of ice so the sword couldn't be used for evil or malicious purposes.

Appearance
The form of this sword is a giant great sword with a gold hilt and a long red handle.

Due to the curse placed on the sword it causes a "Curse Mark" to appear on the user's body and if the user doesn't have enough power to completely control the sword it can cause their shape to change into one that resembles a "Great Beast".

Abilities
Immense Destruction: The Dark Excalibur has the ability to unleash pure, destructive waves of power on par with the Caliburn.

Immense Freezing or Immense Flames: Due to being a bridge between both the polar opposites (Heaven and Hell) the sword is capable of unleashing blasts that could either freeze their opponents or incinerate them.

Dragon Killing Properties: Due to being sealed with dragon's blood the sword is capable of killing dragons with immense ease.

Devil and Angel Killing Properties: Due to being infused with both holy and demonic energy the sword is capable of slaying devils and angels with ease. If the sword manages to cut a angel or devil to the point where they start to bleed the holy-demonic poison sealed in the cused blade will weaken them.