CALM 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 Calm 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 CALM NATURE POKEMON
Special walls run Calm to tank hits from special attackers. 10% extra Sp. Defense, 10% less Attack. If your wall's moves are all status or special, that's a clean trade. For Yellow, Clefable, Mew, Tentacruel, and others all run Calm in competitive play. Natures weren't in Yellow. Competitive players apply Calm when breeding these Pokemon in Gen 3+ games.
Calm raises Sp. Defense by 10% and lowers Attack by 10%. Special walls and support Pokemon that use special moves. 27 Pokemon competitively run this nature.
| # | Pokemon | Tier | Role | Ability | +SpD | -Atk | Spe |
|---|---|---|---|---|---|---|---|
| 1 |  Clefable FAIRY | B | Bulky Support | Magic Guard | 90+14 | 70-9 | 60 |
| 2 |  Mew PSYCHIC | B | Bulky Support | Synchronize | 100+15 | 100-12 | 100 |
| 3 |  Tentacruel WATERPOISON | B | Bulky Support | Liquidooze | 120+17 | 70-9 | 100 |
| 4 |  Articuno ICE | B | Bulky Support | Pressure | 125+17 | 85-11 | 85 |
| 5 |  Vaporeon WATER | B | Bulky Support | Waterabsorb | 95+14 | 65-9 | 65 |
| 6 |  Tentacool WATERPOISON | C | Bulky Support | Liquidooze | 100+15 | 40-6 | 70 |
| 7 |  Blastoise WATER | C | Bulky Support | Torrent | 105+15 | 83-11 | 78 |
| 8 |  Mr. Mime PSYCHICFAIRY | C | Special Tank | Technician | 120+17 | 45-7 | 90 |
| 9 |  Magmar FIRE | C | Bulky Support | Flame Body | 85+13 | 95-12 | 93 |
| 10 |  Wartortle WATER | C | Bulky Support | Torrent | 80+13 | 63-9 | 58 |
| 11 |  Venusaur GRASSPOISON | C | Bulky Support | Overgrow | 100+15 | 82-11 | 80 |
| 12 |  Ivysaur GRASSPOISON | C | Bulky Support | Chlorophyll | 80+13 | 62-9 | 60 |
| 13 |  Lickitung NORMAL | C | Bulky Support | Oblivious | 75+12 | 55-8 | 30 |
| 14 |  Vileplume GRASSPOISON | C | Bulky Support | Effect Spore | 90+14 | 80-10 | 50 |
| 15 |  Koffing POISON | C | Bulky Support | Levitate | 45+9 | 65-9 | 35 |
| 16 |  Dewgong WATERICE | C | Bulky Support | Hydration | 95+14 | 70-9 | 70 |
| 17 |  Weezing POISON | C | Bulky Support | Levitate | 70+12 | 90-11 | 60 |
| 18 |  Wigglytuff NORMALFAIRY | C | Bulky Support | Cutecharm | 50+10 | 70-9 | 45 |
| 19 |  Tangela GRASS | C | Bulky Support | Regenerator | 40+9 | 55-8 | 60 |
| 20 |  Hypno PSYCHIC | C | Bulky Support | Insomnia | 115+16 | 73-10 | 67 |
| 21 |  Dragonair DRAGON | C | Bulky Support | Shedskin | 70+12 | 84-11 | 70 |
| 22 |  Gloom GRASSPOISON | C | Bulky Support | Chlorophyll | 75+12 | 65-9 | 40 |
| 23 |  Jigglypuff NORMALFAIRY | C | Bulky Support | Cute Charm | 25+7 | 45-7 | 20 |
| 24 |  Clefairy FAIRY | D | Bulky Support | Cutecharm | 65+11 | 45-7 | 35 |
| 25 |  Zubat POISON | D | Physical Attacker | Innerfocus | 40+9 | 45-7 | 55 |
| 26 |  Vulpix FIRE | D | Bulky Support | Flashfire | 65+11 | 41-7 | 65 |
| 27 |  Psyduck WATER | D | Bulky Support | Cloudnine | 50+10 | 52-8 | 55 |
Clefable
FAIRY
Role
Bulky SupportAbility
Magic Guard+SpD
90 +14Spe
60Mew
PSYCHIC
Role
Bulky SupportAbility
Synchronize+SpD
100 +15Spe
100Tentacruel
WATER POISON
Role
Bulky SupportAbility
Liquidooze+SpD
120 +17Spe
100Articuno
ICE
Role
Bulky SupportAbility
Pressure+SpD
125 +17Spe
85Vaporeon
WATER
Role
Bulky SupportAbility
Waterabsorb+SpD
95 +14Spe
65Tentacool
WATER POISON
Role
Bulky SupportAbility
Liquidooze+SpD
100 +15Spe
70Blastoise
WATER
Role
Bulky SupportAbility
Torrent+SpD
105 +15Spe
78Mr. Mime
PSYCHIC FAIRY
Role
Special TankAbility
Technician+SpD
120 +17Spe
90Magmar
FIRE
Role
Bulky SupportAbility
Flame Body+SpD
85 +13Spe
93Wartortle
WATER
Role
Bulky SupportAbility
Torrent+SpD
80 +13Spe
58Venusaur
GRASS POISON
Role
Bulky SupportAbility
Overgrow+SpD
100 +15Spe
80Ivysaur
GRASS POISON
Role
Bulky SupportAbility
Chlorophyll+SpD
80 +13Spe
60Lickitung
NORMAL
Role
Bulky SupportAbility
Oblivious+SpD
75 +12Spe
30Vileplume
GRASS POISON
Role
Bulky SupportAbility
Effect Spore+SpD
90 +14Spe
50Koffing
POISON
Role
Bulky SupportAbility
Levitate+SpD
45 +9Spe
35Dewgong
WATER ICE
Role
Bulky SupportAbility
Hydration+SpD
95 +14Spe
70Weezing
POISON
Role
Bulky SupportAbility
Levitate+SpD
70 +12Spe
60Wigglytuff
NORMAL FAIRY
Role
Bulky SupportAbility
Cutecharm+SpD
50 +10Spe
45Tangela
GRASS
Role
Bulky SupportAbility
Regenerator+SpD
40 +9Spe
60Hypno
PSYCHIC
Role
Bulky SupportAbility
Insomnia+SpD
115 +16Spe
67Dragonair
DRAGON
Role
Bulky SupportAbility
Shedskin+SpD
70 +12Spe
70Gloom
GRASS POISON
Role
Bulky SupportAbility
Chlorophyll+SpD
75 +12Spe
40Jigglypuff
NORMAL FAIRY
Role
Bulky SupportAbility
Cute Charm+SpD
25 +7Spe
20Clefairy
FAIRY
Role
Bulky SupportAbility
Cutecharm+SpD
65 +11Spe
35Zubat
POISON
Role
Physical AttackerAbility
Innerfocus+SpD
40 +9Spe
55Vulpix
FIRE
Role
Bulky SupportAbility
Flashfire+SpD
65 +11Spe
65Psyduck
WATER
Role
Bulky SupportAbility
Cloudnine+SpD
50 +10Spe
55CALM NATURE GUIDE
+10%Sp. Defense
-10%Attack
Flavor Preference
Likes Bitter, dislikes Spicy
Competitive Role
Special walls and support Pokemon that use special moves.
Calm vs Careful
Choose Calm
+Sp. Defense / -Attack
- Pokemon that need to check physical threats (use +Def)
- Pokemon that need to check special threats (use +SpD)
- Walls and tanks that rarely attack
Choose Careful
+Sp. Defense / -Sp. Attack
- Defensive Pokemon that still need attacking power
- Pokemon that run both physical and special moves
How to Get
SynchronizeLead with a Calm Pokemon that has the Synchronize ability. Wild Pokemon will match its nature. (Gen 3+)
BreedingGive the parent with Calm nature an Everstone. The offspring will inherit it. (100% since Gen 5)
Nature MintUse a Calm Mint to change stat effects to Calm. The original nature name stays but stats change. (Gen 8+)
Other +Sp. Defense Natures
CALM FAQs
What does the Calm nature do in Pokemon?
Calm raises Sp. Defense by 10% and lowers Attack by 10%. At level 100 with full investment, that's roughly a 30-point swing on the boosted stat. Pokemon with Calm nature prefer Bitter flavor and dislike Spicy.
What are the best Calm nature Pokemon?
Top Calm users include Clefable, Mew, Tentacruel, and Articuno. They benefit from the Sp. Defense boost because their main damage comes from that stat. The Attack drop doesn't hurt them since they don't rely on it.
Is Calm a good nature for competitive Pokemon?
Calm is a strong competitive nature. It fills a solid niche for defensive builds. The key is matching it to Pokemon that don't need Attack in their moveset.
How do I get a Calm nature Pokemon?
Synchronize is the fastest method. Lead with a Pokemon that has Synchronize and Calm nature, and wild encounters match it (Gen 3+). Breeding works too: give the Calm parent an Everstone and all offspring inherit the nature. Nature Mints (Gen 8+) let you change the stat effect to Calm without rebreeding.
Should I use Calm or Careful?
Calm prioritizes special wall utility, while Careful goes for physical wall utility. Pick Calm when your Pokemon's role depends on the stat it boosts. Go with Careful when physical wall utility matters more for your team.