Mistborn

Mistborn is the name of a fantasy series created by Brandon Sanderson which features unique magical systems. It contains a large amount of Awesome and, for the first three books,Grimdark in fuckhuge amounts, although not quite Warhammer 40K level.

Plot Evil almost, but not quite, ruled the land. A brave hero of a mysterious heritage rose to challenge it. He failed. NOT AS PLANNED. The 'hero' was tempted by the prospect of unlimited power and fell to evil.