The Creation of Dark Imperium

In my story Darkfate, Dark Imperium is the most powerful element in all existence. It is an unnatural metal that can only be forged by fusing together Death's Heart (an extremely rare crystal found only in the Chaos Universe) and Imperium (a rare indestructible metal that has magical properties) using dark magic that only Astroces the God of Shadow has mastered.

In the picture Astroces, who is a true immortal, is shown forging the Anti-matter Sword. The sword is eventually stolen by the overseer Darkfate who barely escapes alive from the Shadow Universe back to our universe.