Oblivion

The Oblivion travels backwards through time, from the Omega to the Alpha, disrupting every living thing that it comes in contact with.

The Oblivion is using:
<wielded>           [Pristine  ] (Demonic) (Glowing) the sword of ascension

You peek at the inventory:
    [Pristine  ] (Demonic) a black marble key

Level: 200
On scan: (Demonic) (Black Aura) A vision of the end of the world drives you to your knees.