Natures (せいかく Personality) are a Pokémon's personality and effect their Stats as it levels up. Specifically, all but five Natures can affect two stats, increasing one by 10% and decreasing another by 10%. Additionally, all but the same five stats affect what kind of flavour the Pokémon will like as well. Natures have the potential to affect any Stat except for HP. In total, there are 24 different types of natures that any Pokémon is capable of having.

Null Natures

Null Natures both increases and decreases a single Stat, canceling each other out leaving the effect nullified. Pokémon with a Null nature do not like or dislike any flavour of food.

• Bashful
• Docile
• Hardy
• Quirky
• Serious

Attack Increasing Natures

The following Natures will increase the Attack Stat. Pokémon with any of the following Natures will like Spicy flavoured foods.

• Adamant - Special Attack (lowered stat)
• Brave - Speed (lowered stat)
• Lonely - Defense (lowered stat)
• Naughty - Special Defense (lowered stat)

Defense Increasing Natures

The following Natures increase the Defense Stat. Pokémon with any of the following Natures will like Sour flavoured foods.

• Bold - Attack (lower stat)
• Relaxed - Speed (lowered stat)
• Impish - Special Attack (lowered stat)
• Lax - Special Defense (lowered stat)

Special Attack Increasing Natures

The following Natures will increase the Special Attack Stat. Pokémon with one of the following Natures will like Dry flavoured foods.

• Modest - Attack (lowered stat)
• Mild - Defense (lowered stat)
• Quiet - Speed (lowered stat)
• Rash - Special Defense (lowered stat)

Special Defense Increasing Natures

The following Natures will increase the Special Defense Stat. Pokémon with one of the following Natures will like Bitter flavoured foods.

• Calm - Attack (lowered stat)
• Gentle - Defense (lowered stat)
• Sassy - Speed (lowered stat)
• Careful - Special Attack (lowered stat)

Speed Increasing Natures

The following natures will increase the Speed Stat. Pokémon with any of the following Natures will like Sweet flavoured foods.

• Timid - Attack (lowered stat)
• Hasty - Defense (lowered stat)
• Jolly - Special Attack (lowered stat)
• Naive - Special Defense (lowered stat)