NAUGHTY NATURE CALCULATOR
Natures weren't part of the series until Generation III (Ruby & Sapphire), so Yellow doesn't have them. Every stat is calculated from base stats, IVs (called DVs back then), and Stat Experience alone. If you're looking for the Naughty nature's stat effect, switch the game filter above to any Gen III or later title. That said, the concept still helps with planning teams for remakes like FireRed & LeafGreen or HeartGold & SoulSilver, where natures do apply.
BEST NAUGHTY NATURE POKEMON
10% extra Attack from Naughty costs you Sp. Defense, which hurts on the special side. Over in Yellow, You'll see it on Seaking, Shellder, Victreebel among others. Mixed attackers sometimes run it, though most pure physical sets prefer Adamant. Natures weren't in Yellow. Competitive players apply Naughty when breeding these Pokemon in Gen 3+ games.
Naughty raises Attack by 10% and lowers Sp. Defense by 10%. Physical attackers willing to sacrifice special bulk for more power. 9 Pokemon competitively run this nature.
| # | Pokemon | Tier | Role | Ability | +Atk | -SpD | Spe |
|---|---|---|---|---|---|---|---|
| 1 |  Seaking WATER | C | Physical Attacker | Swiftswim | 92+14 | 80-10 | 68 |
| 2 |  Shellder WATER | C | Physical Attacker | Skilllink | 65+11 | 25-5 | 40 |
| 3 |  Victreebel GRASSPOISON | C | Physical Attacker | Gluttony | 105+15 | 70-9 | 70 |
| 4 |  Weepinbell GRASSPOISON | C | Physical Attacker | Chlorophyll | 90+14 | 45-7 | 55 |
| 5 |  Caterpie BUG | D | Physical Tank | Shielddust | 30+8 | 20-4 | 45 |
| 6 |  Spearow NORMAL | D | Utility | Keeneye | 60+11 | 31-6 | 70 |
| 7 |  Weedle BUGPOISON | D | Physical Tank | Shielddust | 35+8 | 20-4 | 50 |
| 8 |  Metapod BUG | D | Utility | Shed Skin | 20+7 | 25-5 | 30 |
| 9 |  Kakuna BUGPOISON | D | Physical Attacker | Shed Skin | 25+7 | 25-5 | 35 |
Seaking
WATER
Role
Physical AttackerAbility
Swiftswim+Atk
92 +14Spe
68Shellder
WATER
Role
Physical AttackerAbility
Skilllink+Atk
65 +11Spe
40Victreebel
GRASS POISON
Role
Physical AttackerAbility
Gluttony+Atk
105 +15Spe
70Weepinbell
GRASS POISON
Role
Physical AttackerAbility
Chlorophyll+Atk
90 +14Spe
55Caterpie
BUG
Role
Physical TankAbility
Shielddust+Atk
30 +8Spe
45Spearow
NORMAL
Role
UtilityAbility
Keeneye+Atk
60 +11Spe
70Weedle
BUG POISON
Role
Physical TankAbility
Shielddust+Atk
35 +8Spe
50Metapod
BUG
Role
UtilityAbility
Shed Skin+Atk
20 +7Spe
30Kakuna
BUG POISON
Role
Physical AttackerAbility
Shed Skin+Atk
25 +7Spe
35NAUGHTY NATURE GUIDE
+10%Attack
-10%Sp. Defense
Flavor Preference
Likes Spicy, dislikes Bitter
Competitive Role
Physical attackers willing to sacrifice special bulk for more power.
Naughty vs Adamant
Choose Naughty
+Attack / -Sp. Defense
- Pokemon that benefit from maximizing Attack
- Builds where the -Sp. Defense penalty is irrelevant
Choose Adamant
+Attack / -Sp. Attack
- Pokemon that need Attack more than Attack
- Builds where -Sp. Defense is too costly
How to Get
SynchronizeLead with a Naughty Pokemon that has the Synchronize ability. Wild Pokemon will match its nature. (Gen 3+)
BreedingGive the parent with Naughty nature an Everstone. The offspring will inherit it. (100% since Gen 5)
Nature MintUse a Naughty Mint to change stat effects to Naughty. The original nature name stays but stats change. (Gen 8+)
Other +Attack Natures
NAUGHTY FAQs
What does the Naughty nature do in Pokemon?
Naughty raises Attack by 10% and lowers Sp. Defense by 10%. At level 100 with full investment, that's roughly a 30-point swing on the boosted stat. Pokemon with Naughty nature prefer Spicy flavor and dislike Bitter.
What are the best Naughty nature Pokemon?
Top Naughty users include Seaking, Shellder, Victreebel, and Weepinbell. They benefit from the Attack boost because their main damage comes from that stat. The Sp. Defense drop doesn't hurt them since they don't rely on it.
Is Naughty a good nature for competitive Pokemon?
Naughty 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. Defense in their moveset.
How do I get a Naughty nature Pokemon?
Synchronize is the fastest method. Lead with a Pokemon that has Synchronize and Naughty nature, and wild encounters match it (Gen 3+). Breeding works too: give the Naughty parent an Everstone and all offspring inherit the nature. Nature Mints (Gen 8+) let you change the stat effect to Naughty without rebreeding.
Should I use Naughty or Adamant?
Naughty prioritizes mixed offense, while Adamant goes for dedicated physical. Pick Naughty when your Pokemon's role depends on the stat it boosts. Go with Adamant when dedicated physical matters more for your team.