Pokemon natures are another key feature of the games, introduced in Generation III (Ruby/Sapphire), which can increase certain stats. Each Pokemon has one nature, randomly selected from a total of 25.
Rather than just being a superficial
personality, Natures actually affect the growth of a Pokemon. Each nature increases one of its stats by 10% and decreases one by 10% (by the time it reaches level 100). Five natures increase and decrease the same stat and therefore have no effect.
In most cases it is preferable to have a nature that decreases either Attack or Special Attack for Pokemon whose strengths are the opposite type of attack. Espeon, for example, favours Special moves, so it's best to use a nature that decreases its Attack since it won't be used.
The 25 natures are shown in the grid below. Find where the modifiers intersect for the corresponding natures - for example, a Timid nature (bottom left) will reduce a Pokemon's Attack but increase its Speed. The alphabetical tab will help you quickly look up a nature by name.
|- Attack||- Defense||- Sp. Atk||- Sp. Def||- Speed|
|+ Sp. Atk||Modest||Mild||Bashful||Rash||Quiet|
|+ Sp. Def||Calm||Gentle||Careful||Quirky||Sassy|
|Bashful||Sp. Atk||Sp. Atk|
|Careful||Sp. Def||Sp. Atk|
|Quirky||Sp. Def||Sp. Def|
|Rash||Sp. Atk||Sp. Def|
Type a Pokemon name, type, move or ability to see instant results.