Avalon

Avalon is a shattered Exo-Moon which has found its way into the Mordred System.

It is unknown how Avalon came to be set on its trajectory, but billions of years ago it smashed into Samsara in a cataclysmic event. Samsara was left with a massive crate, however Avalon fared much worse as it rebounded from the impact. Avalon began to break apart, and was knocked from Samsara's gravitational path.

During contact with Samsara the ancient plague of Umbral Toxin was passed onto the surface of Avalon. From there it evolved around the exo-moons hellish and dying conditions, allowing it to become even more deadly.

For eons it would remain on Avalon undiscovered until eventually it would be exposed to the Galaxy in a series of events that would lead to the Umbral Wars.