No stat changes at all. Docile is one of five neutral natures, and competitive players avoid all of them. A nature that boosts Attack, Sp. Attack, or Speed will always outperform a flat stat line. Don't queue into competitive with Docile. Nature Mints are cheap in Scarlet & Violet.

Docile is a neutral nature with no stat change. For physical walls, use Bold or Impish instead.
SHOWINGRegional11
#PokemonNatureTierRoleAbilitySpe
1
Skarmory
Skarmory
STEELFLYING
BoldABulky SupportSturdy70
2
Foongus
Foongus
GRASSPOISON
BoldABulky SupportRegenerator15
3
Mudbray
Mudbray
GROUND
ImpishAUtilityStamina45
4
Rhydon
Rhydon
GROUNDROCK
ImpishABulky SupportReckless40
5
Milotic
Milotic
WATER
BoldABulky SupportMarvelscale81
6
Amoonguss
Amoonguss
GRASSPOISON
BoldABulky SupportRegenerator30
7
Dondozo
Dondozo
WATER
ImpishABulky SupportUnaware35
8BoldABulky SupportMagic Guard60
9
Skeledirge
Skeledirge
FIREGHOST
BoldABulky SupportUnaware66
10
Whimsicott
Whimsicott
GRASSFAIRY
BoldABulky SupportPrankster116
11
Sandslash
Sandslash
GROUND
ImpishABulky SupportSandrush65
12
Slowbro
Slowbro
WATERPSYCHIC
BoldABulky SupportRegenerator30
13
Mudsdale
Mudsdale
GROUND
ImpishABulky SupportStamina35
Skarmory
Skarmory
STEEL FLYING
A
Nature
Bold
Role
Bulky Support
Ability
Sturdy
Spe
70
Foongus
Foongus
GRASS POISON
A
Nature
Bold
Role
Bulky Support
Ability
Regenerator
Spe
15
Mudbray
Mudbray
GROUND
A
Nature
Impish
Role
Utility
Ability
Stamina
Spe
45
Rhydon
Rhydon
GROUND ROCK
A
Nature
Impish
Role
Bulky Support
Ability
Reckless
Spe
40
Milotic
Milotic
WATER
A
Nature
Bold
Role
Bulky Support
Ability
Marvelscale
Spe
81
Amoonguss
Amoonguss
GRASS POISON
A
Nature
Bold
Role
Bulky Support
Ability
Regenerator
Spe
30
Dondozo
Dondozo
WATER
A
Nature
Impish
Role
Bulky Support
Ability
Unaware
Spe
35
Clefable
Clefable
FAIRY
A
Nature
Bold
Role
Bulky Support
Ability
Magic Guard
Spe
60
Skeledirge
Skeledirge
FIRE GHOST
A
Nature
Bold
Role
Bulky Support
Ability
Unaware
Spe
66
Whimsicott
Whimsicott
GRASS FAIRY
A
Nature
Bold
Role
Bulky Support
Ability
Prankster
Spe
116
Sandslash
Sandslash
GROUND
A
Nature
Impish
Role
Bulky Support
Ability
Sandrush
Spe
65
Slowbro
Slowbro
WATER PSYCHIC
A
Nature
Bold
Role
Bulky Support
Ability
Regenerator
Spe
30
Mudsdale
Mudsdale
GROUND
A
Nature
Impish
Role
Bulky Support
Ability
Stamina
Spe
35
Docile is a neutral nature — no stat is increased or decreased.
Competitive Role
No competitive advantage. A stat-boosting nature is almost always preferred.
How to Get
SynchronizeLead with a Docile Pokemon that has the Synchronize ability. Wild Pokemon will match its nature. (Gen 3+)
BreedingGive the parent with Docile nature an Everstone. The offspring will inherit it. (100% since Gen 5)
Nature MintUse a Docile Mint to change stat effects to Docile. The original nature name stays but stats change. (Gen 8+)
What does the Docile nature do in Pokemon?
Nothing, basically. Docile doesn't change any stat. There's no boost and no penalty. Your Pokemon keeps its base stat spread exactly as-is.
Is Docile nature good?
There's no competitive reason to keep Docile. A 10% stat boost from any other nature is free power you're leaving on the table. Nature Mints (Gen 8+) let you change it without breeding.
How do I get a Docile nature Pokemon?
Catch a Pokemon and check. There's a 4% chance of any specific nature, including Docile. Synchronize ability matches the lead Pokemon's nature to wild encounters (Gen 3+). Everstone passes a parent's nature during breeding.
When should you use a neutral nature?
Almost never. The only edge case is a Pokemon that uses physical moves, special moves, and needs every defensive stat and Speed. That Pokemon doesn't really exist in competitive. Even mixed attackers prefer Naive, Hasty, or another nature that at least boosts Speed.