You are Caleb, and you are a bad, bad man. You sold your immortal soul for The Dark God, Tchernobog, and you and the other Chosen served Him dutifully until He decided it was time to take everything from you for Himself... apparently, even gods make mistakes.
Leaving you to rot in a grave and forgetting about you was a BIG one.
Now, you're back and after what's yours - your enemies will scream for mercy, getting none, as you slice, smash and burn your way to your destiny.... and if you save the world in the process... well it'll mean more for you to rule later.