Siren is a mermaid-like Bakugan that soothes souls with her magical lyre. She is the Guardian Bakugan of Klaus Von Hertzon. (Source: Bakugan Wiki)
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Siren is a mermaid-like Bakugan that soothes souls with her magical lyre. She is the Guardian Bakugan of Klaus Von Hertzon. (Source: Bakugan Wiki)
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