Hal Jordan And Thaal Sinestro may have started out good friends, but they became infamous enemies. Corrupted by the power, Thaal Sinestro was banished to the anti-matter universe Qward and returned with a new yellow power ring - able to render the green power ring useless. While the villanous Sinestro's power is fueled by fear, the utterly fearless Hal Jordan proves to be a formidable rival.