0
Have some backup Pokemon
0
Make your Charmander learn Metal Claw
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Have a lot of Potions in your bag
0
Evolve your Charmander before taking on the first gym
0
Make your Charmeleon learn Flamethrower
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Evolve your Charmeleon into a Charizard
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Use the best TM moves
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Save your game before taking on a gym
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Have a full team of 6 Pokemon
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Avoid having Pokemon that are lower than level 10
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Have a balanced team