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Rokk Krinn, known by the superhero alias Cosmic Boy, is a member of the Legion of Super-Heroes in the 30th Century. His homeworld is Braal and his power is magnetic manipulation.

This version of Rokk Krinn is one of the Batch SW6 Legionnaires, a younger version of the Legion's existing adult Rokk Krinn introduced during the "Five Years Later" era. Batch SW6 were originally believed to be clones created by the Dominators, but later revealed as time-paradox duplicates engineered by the Time Trapper. The events of Zero Hour erased them and their adult counterparts, replacing them with the Reboot Legion.


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Legion of Super-Heroes member
This character is or was a member of the Legion of Super-Heroes from the 30th/31st Century, in any one of their various continuities. Including but not limited to, Original Legion, the Reboot Legion, Prime Legion and the Post-Rebirth Legion.
This template will categorize articles that include it into the "Legion of Super-Heroes members" category.

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