A heroic warrior who is not what he seems to be.
A blessing can also be a curse - and the last thing the world needs is an Orcish confidence trickster with an enhanced intellect and a penchant for storybooks.
A great warrior, cursed with an eternal life and a dark companion.
From an episode of Justice League Unlimited:
The God of War creates a giant, unstoppable robot (golem, animated armor, etc.) as a weapon for one side in a civil war; his purpose is to prolong the war and create suffering and war among humanity.
Quote from Ares in that episode, which would go well with this idea: "That's all you mortals are good for! To fight and fight and fight until there is nothing left but charred land and blood and bones, and to end it all and then start again with the next generation!"