The night panther who laughs :Dark metal

The origin story of the Night Panther Who Laughs centers around the Joker infecting Night Panther and himself with a toxin that transforms both of them into even more dangerous versions of themselves. Night Panther is forced to battle the Joker's twisted personality while seeking a cure for the toxin. When he fails, he becomes the Night Panther's ultimate agent of chaos, the Night Panther Who Laughs. After wreaking havoc, he faces a final showdown with the remaining heroes.