Ben 10: Alien Force
Trade-Off!
TV-Y7
S3 E11 Dec 3, 2009 23m7.0
Darkstar enables Kevin to find him in order to strike a mutually beneficial deal in laying hands to a powerful artifact of alien origin known as the Dominus Librium. Its acquisition promises to restore both of them to human form - which it does - but the deal leaves Kevin without special powers and Mike Morningstar with the capacity to be a worse threat than he was before.
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