Armor, Shadow, and Energy: The downfall of humanity, the rise of gods

After the death of a brother, his two younger brothers bring hell unto the earth and heavens. They rise not merely for power, but to strike evil and break human nature by becoming monsters in the paths they take. No man shall stand before them arrogant, no man shall do harm. Only they are allowed to enact their hatred! Seeded in the evil nature of others, it was not them that began the killing. Through their revenge, the two younger brothers become known as the demons amongst men. A man of armor who is unkillable, while the other is the bringer of destruction. It is a long journey to revenge, because too many humans are unworthy of life, too many good lives have been lost to those that are evil.