...The light reflected off its pale green surface, glinting off what seemed to be veins coursing through the stone. A curious ring, just lying there as if asking to be found…
...The ring slid onto her finger as if it were lovingly crafted just for her. Its diamond seemed to take in the sunlight, amplify and reflect it in every direction. Then almost immediately, the light waned and the stone went dark. Her throat clutched in a constricting gurgle before she slumped to the ground, still and lifeless.
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!"