Power Ring (character)
Power Ring is the name of several supervillains and one superheroine appearing in comic books published by DC Comics. The characters are alternate-reality counterparts of Green Lanterns Hal Jordan, Kyle Rayner, John Stewart, and Jessica Cruz. Originally portrayed as residing on Earth-Three, which was subsequently destroyed during the 12-issue Crisis on Infinite Earths limited series, the Power Rings, along with the other Crime Syndicate of America members, were later reimagined as being from an Anti-Matter Universe.
Source: Wikipedia
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