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Information

Natures are another dimension of Pokémon customization introduced in RS. "Customization" in this case means "yet another stat for players to obsess over".

Natures increase the calculated value of one stat by 10%, and decrease the calculated value of another stat by 10%. No natures affect HP. There are 25 in total, one for each combination of an increased stat and a decreased stat. Five of these pairse are the same stat twice, and these five natures simply do nothing.

A Pokémon's nature also affects what food it likes or dislikes -- except for the five neutral natures, which simply do nothing. Food that a Pokémon likes more will have a better effect on its condition. Each stat corresponds to one flavor.

So, for example, a Sassy Pokémon has increased Special Defense but lowered Speed, and thus will prefer bitter food and dislike sweet food.

Neutral Natures

Bashful

Docile

Hardy

Quirky

Serious

Natures by Name

Nature Stat increased Stat decreased Preferred flavor Disliked flavor
Adamant Attack Special Attack spicy dry
Bold Defense Attack sour spicy
Brave Attack Speed spicy sweet
Calm Special Defense Attack bitter spicy
Careful Special Defense Special Attack bitter dry
Gentle Special Defense Defense bitter sour
Hasty Speed Defense sweet sour
Impish Defense Special Attack sour dry
Jolly Speed Special Attack sweet dry
Lax Defense Special Defense sour bitter
Lonely Attack Defense spicy sour
Mild Special Attack Defense dry sour
Modest Special Attack Attack dry spicy
Naive Speed Special Defense sweet bitter
Naughty Attack Special Defense spicy bitter
Quiet Special Attack Speed dry sweet
Rash Special Attack Special Defense dry bitter
Relaxed Defense Speed sour sweet
Sassy Special Defense Speed bitter sweet
Timid Speed Attack sweet spicy

Natures by Affected Stat

Wow this table is ugly.

Decreased → Attack Defense Special Attack Special Defense Speed
↓ Increased spicy sour dry bitter sweet
Attack spicy - Lonely Adamant Naughty Brave
Defense sour Bold - Impish Lax Relaxed
Special Attack dry Modest Mild - Rash Quiet
Special Defense bitter Calm Gentle Careful - Sassy
Speed sweet Timid Hasty Jolly Naive -