Lucifer plucked the black ring from the box and grinned. The ring of Wrath was known to instill an intense sense of justice and vengeance into whomever wore it. Throughout history, it had caused even the most noble and forgiving of men to become heartless killing machines who would cut down anyone who wronged them, even in the slightest.
He teleported into Jon's room and snuck the finger onto his hand. He grinned wider as he did so. "With this ring in play, I doubt he'll even last a day." he said as he returned to his lair, waiting for morning and Jon's awakening.