Adamant pushes Attack up 10% and drops Sp. Attack by the same amount. Over in Legends: Arceus, top picks include Sneasler, Arceus, Giratina, and more. If your Pokemon doesn't run special moves, there's no real downside. Legends: Arceus assigns natures randomly. No breeding, no Synchronize, no mints. Getting Adamant is pure luck.

Adamant raises Attack by 10% and lowers Sp. Attack by 10%. Physical Sweepers and physical Wallbreakers that only use physical moves. 100 Pokemon competitively run this nature.
#PokemonTierRoleAbility+Atk-SpASpe
1
Sneasler
Sneasler
FIGHTINGPOISON
SPhysical AttackerUnburden
130+18
40-6
120
2
Arceus
Arceus
NORMAL
SPhysical TankMultitype
120+17
120-14
120
3
Giratina
Giratina
GHOSTDRAGON
SPhysical TankPressure
100+15
100-12
90
4
Tornadus
Tornadus
FLYING
SUtilityPrankster
115+16
125-15
111
5
Scizor
Scizor
BUGSTEEL
APhysical AttackerTechnician
130+18
55-8
65
6
Gyarados
Gyarados
WATERFLYING
APhysical AttackerIntimidate
125+17
60-8
81
7
Snorlax
Snorlax
NORMAL
ABulky SupportImmunity
110+16
65-9
30
8
Basculegion
Basculegion
WATERGHOST
APhysical Revenge KillerAdaptability
112+16
80-10
78
9
Ursaluna
Ursaluna
GROUNDNORMAL
APhysical AttackerGuts
140+19
45-7
50
10
Rhydon
Rhydon
GROUNDROCK
ABulky SupportLightningrod
130+18
45-7
40
11
Rhyperior
Rhyperior
GROUNDROCK
APhysical AttackerSolidrock
140+19
55-8
40
12APhysical TankIntimidate
110+16
100-12
95
13
Scyther
Scyther
BUGFLYING
AUtilityTechnician
110+16
55-8
105
14
Ambipom
Ambipom
NORMAL
APhysical AttackerTechnician
100+15
60-8
115
Sneasler
Sneasler
FIGHTING POISON
S
Role
Physical Attacker
Ability
Unburden
+Atk
130 +18
Spe
120
Arceus
Arceus
NORMAL
S
Role
Physical Tank
Ability
Multitype
+Atk
120 +17
Spe
120
Giratina
Giratina
GHOST DRAGON
S
Role
Physical Tank
Ability
Pressure
+Atk
100 +15
Spe
90
Tornadus
Tornadus
FLYING
S
Role
Utility
Ability
Prankster
+Atk
115 +16
Spe
111
Scizor
Scizor
BUG STEEL
A
Role
Physical Attacker
Ability
Technician
+Atk
130 +18
Spe
65
Gyarados
Gyarados
WATER FLYING
A
Role
Physical Attacker
Ability
Intimidate
+Atk
125 +17
Spe
81
Snorlax
Snorlax
NORMAL
A
Role
Bulky Support
Ability
Immunity
+Atk
110 +16
Spe
30
Basculegion
Basculegion
WATER GHOST
A
Role
Physical Revenge Killer
Ability
Adaptability
+Atk
112 +16
Spe
78
Ursaluna
Ursaluna
GROUND NORMAL
A
Role
Physical Attacker
Ability
Guts
+Atk
140 +19
Spe
50
Rhydon
Rhydon
GROUND ROCK
A
Role
Bulky Support
Ability
Lightningrod
+Atk
130 +18
Spe
40
Rhyperior
Rhyperior
GROUND ROCK
A
Role
Physical Attacker
Ability
Solidrock
+Atk
140 +19
Spe
40
A
Role
Physical Tank
Ability
Intimidate
+Atk
110 +16
Spe
95
Scyther
Scyther
BUG FLYING
A
Role
Utility
Ability
Technician
+Atk
110 +16
Spe
105
Ambipom
Ambipom
NORMAL
A
Role
Physical Attacker
Ability
Technician
+Atk
100 +15
Spe
115
+10%Attack
-10%Sp. Attack
Flavor Preference
Likes Spicy, dislikes Dry
Competitive Role
Physical Sweepers and physical Wallbreakers that only use physical moves.
Adamant vs Jolly
Choose Adamant
+Attack / -Sp. Attack
  • Pokemon with priority moves (Extreme Speed, Aqua Jet, Sucker Punch)
  • Dragon Dance or other speed-boosting move users
  • Pokemon with base 130+ Speed that already outspeed threats
  • Choice Scarf holders that compensate for lower Speed
Choose Jolly
+Speed / -Sp. Attack
  • Pokemon in the base 80-110 Speed tier where one point decides matchups
  • Pure sweepers without priority or speed-boosting moves
  • Pokemon that need to outspeed a specific threat to function
How to Get
SynchronizeLead with a Adamant Pokemon that has the Synchronize ability. Wild Pokemon will match its nature. (Gen 3+)
BreedingGive the parent with Adamant nature an Everstone. The offspring will inherit it. (100% since Gen 5)
Nature MintUse an Adamant Mint to change stat effects to Adamant. The original nature name stays but stats change. (Gen 8+)
What does the Adamant nature do in Pokemon?
Adamant raises Attack by 10% and lowers Sp. Attack by 10%. At level 100 with full investment, that's roughly a 30-point swing on the boosted stat. Pokemon with Adamant nature prefer Spicy flavor and dislike Dry.
What are the best Adamant nature Pokemon?
Top Adamant users include Sneasler, Arceus, Giratina, and Tornadus. They benefit from the Attack boost because their main damage comes from that stat. The Sp. Attack drop doesn't hurt them since they don't rely on it.
Is Adamant a good nature for competitive Pokemon?
Adamant is a strong competitive nature. It's one of the most-used natures in competitive formats. The key is matching it to Pokemon that don't need Sp. Attack in their moveset.
How do I get an Adamant nature Pokemon?
Synchronize is the fastest method. Lead with a Pokemon that has Synchronize and Adamant nature, and wild encounters match it (Gen 3+). Breeding works too: give the Adamant parent an Everstone and all offspring inherit the nature. Nature Mints (Gen 8+) let you change the stat effect to Adamant without rebreeding.
Should I use Adamant or Jolly?
Adamant prioritizes power, while Jolly goes for speed. Pick Adamant when your Pokemon's role depends on the stat it boosts. Go with Jolly when speed matters more for your team.