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Silver steals a [[Pokémon]] from [[Professor Elm]]. At least one other Pokémon of his was stolen from another trainer. He travels [[Johto]], meddling with [[Team Rocket]]'s plans to call back their once leader [[Giovanni]]. Silver hates weak trainers, and has vowed to become strong and wipe out the weak trainers. This goes even for Team Rocket, as the trainers alone are weak.
Fan speculation is that Silver may be Giovanni's red-haired son, due to [[FireRed and LeafGreen]]'s [[Fame Checker]]'s many references to [[Gold and Silver]] versions, and to Silver's dark demeanor and detestment of Team Rocket.