Natures Guide

Natures increase one stat by 10% and decrease another by 10%. Neutral natures (—) have no effect. Critical for Expert and Insane difficulty where opponents have optimized natures.

Common Competitive Natures

Physical Sweeper
Adamant
+Atk / -Sp.Atk
Special Sweeper
Modest
+Sp.Atk / -Atk
Fast Physical
Jolly
+Speed / -Sp.Atk
Fast Special
Timid
+Speed / -Atk

All 25 Natures

Nature +Stat (10%) -Stat (10%)
Adamant Attack Sp. Atk
Bashful
Bold Defense Attack
Brave Attack Speed
Calm Sp. Def Attack
Careful Sp. Def Sp. Atk
Docile
Gentle Sp. Def Defense
Hardy
Hasty Speed Defense
Impish Defense Sp. Atk
Jolly Speed Sp. Atk
Lax Defense Sp. Def
Lonely Attack Defense
Mild Sp. Atk Defense
Modest Sp. Atk Attack
Naive Speed Sp. Def
Naughty Attack Sp. Def
Quiet Sp. Atk Speed
Quirky
Rash Sp. Atk Sp. Def
Relaxed Defense Speed
Sassy Sp. Def Speed
Serious
Timid Speed Attack

Nature Tips for Unbound

On Expert and Insane difficulty, AI trainers use optimized natures. You should too.

The Synchronize ability (Abra, Espeon, Umbreon) makes wild Pokémon have a 50% chance of matching the Synchronize user's nature — use it to hunt for the right nature.

On Insane difficulty, the nature difference between Adamant and a neutral nature is often the difference between a KO and a survive.