Cursed Chains "Discontent"

All living things are driven by desire. These were lyrics written by a famous minstrel. Though his songs were popular among the nobility and the educated, he himself died with his greatest wish unfulfilled: love. His soul, holding despair great enough to be visible on his lifeless face, was then taken into a deep violet jewel. Whoever owns it will gain power at the cost of having their being gradually taken over by darkness.