The evil Mon-Star is a criminal from Silverhawks. His evil knows no boundaries. All that he wanted is to take over an entire galaxy and seek revenge on Stargazer for putting him in Jail. Whenever Mon-Star is enhanced with the light of the Moon-Star of Limbo, he transforms into an even more powerful monster by using this chant- "Moon-star of Limbo, give me the might, the muscle, the menace of Mon-Star!"

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