Corax

Corax, The God of Darkness
Corax is just a myth.

...isn't it?

Lore
All we know is that The Mastermind has some type of connection with Corax. Some say that that The Mastermind cannot be killed, much like Corax. How does one obtain invulnerability? What kind of bargain would you have to make with the God of Darkness, itself to achieve such a feat? Perhaps this is an answer don't even want to know..

However, Corax is still just a myth. No one has actually seen it before - not even a drawing. Perhaps it is the darkness itself, for all we know.