Pokémon have distinct personalities. Some are sassy, others are quite serious, and some are just plain rash. To the untrained eye, these seem like mere personality traits, but to us, the Pokémon breeders, they mean so much more. A Pokémon's nature determines which of its stats get a slight boost, and which take a slight decrease. It also determines what flavor of Pokéblock and berry your Pokémon enjoy, but we will not be covering that in this article as it is not particularly pertinent to breeding. If you want to know more about berries and flavors I suggest you take a look at
Serebii's nature guide for that information.
Naughty by NatureEvery Pokémon in Generation IV has a Nature Value which can be found on its Summary screen. Nature Values, or natures, adjust your Pokémon's stats by ten percent for two individual statistics. There are exceptions to this in the form of Neutral Natures, which do not modify any stat.
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