Team Rocket (Kanto): Rattata, Zubat, Ekans, Koffing, Drowzee, Machop
Team Rocket (Johto): Rattata, Zubat, Grimer, Koffing, Oddish, Ekans
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Team Magma: Poochyena, Numel, Zubat, Koffing, Baltoy
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Team Aqua: Poochyena, Carvanha, Zubat, Grimer, Wailmer
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Team Galactic: Zubat, Glameow, Stunky, Wurmple, Coragunk, Houndour
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Team Plasma (BW): Patrat, Purrloin, Sandile, Scraggy, Trubbish
Team Plasma (BW2): Trubbish, Patrat, Sandile, Zubat, Scraggy, Koffing
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Team Flare: Zubat, Croagunk, Scraggy, Gulpin, Purrloin, Electrike
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Team Skull: Rattata, Zubat, Drowzee, Fomantis, Salandit, Gastly
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Aether Foundation: They don't seem to have any themes, as no two of their Pokemon are the same species.
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