Sassy boosts Sp. Defense by 10% and drops Speed. For slow walls and Trick Room special tanks, that Speed cut is a bonus. In FireRed & LeafGreen, Rhydon, Jirachi, Regirock, and others all run Sassy in competitive play. Synchronize is your best bet for Sassy in FireRed & LeafGreen. Lead with a Synchronize Pokemon that already has it.
Sassy raises Sp. Defense by 10% and lowers Speed by 10%. Slow special walls, often paired with Trick Room. 68 Pokemon competitively run this nature.
SHOWINGRegional23
| # | Pokemon | Tier | Role | Ability | +SpD | -Spe | Spe |
|---|---|---|---|---|---|---|---|
| 1 |  Rhydon GROUNDROCK | A | Bulky Support | Lightningrod | 45+9 | 40-6 | 40 |
| 2 |  Jirachi STEELPSYCHIC | A | Bulky Support | Serenegrace | 100+15 | 100-12 | 100 |
| 3 |  Regirock ROCK | A | Bulky Support | Clearbody | 100+15 | 50-7 | 50 |
| 4 |  Slowking WATERPSYCHIC | B | Bulky Support | Regenerator | 110+16 | 30-5 | 30 |
| 5 |  Swampert WATERGROUND | B | Bulky Support | Torrent | 90+14 | 60-8 | 60 |
| 6 |  Politoed WATER | B | Bulky Support | Drizzle | 100+15 | 70-9 | 70 |
| 7 |  Porygon2 NORMAL | B | Bulky Support | Download | 95+14 | 60-8 | 60 |
| 8 |  Dusclops GHOST | B | Bulky Support | Frisk | 130+18 | 25-5 | 25 |
| 9 |  Smeargle NORMAL | B | Bulky Support | Moody | 45+9 | 75-10 | 75 |
| 10 |  Cacturne GRASSDARK | B | Bulky Support | Waterabsorb | 60+11 | 55-8 | 55 |
| 11 |  Lapras WATERICE | B | Bulky Support | Waterabsorb | 95+14 | 60-8 | 60 |
| 12 |  Forretress BUGSTEEL | B | Bulky Support | Sturdy | 60+11 | 40-6 | 40 |
| 13 |  Chansey NORMAL | B | Bulky Support | Healer | 105+15 | 50-7 | 50 |
| 14 |  Vileplume GRASSPOISON | B | Bulky Support | Effect Spore | 90+14 | 50-7 | 50 |
| 15 |  Tentacruel WATERPOISON | B | Bulky Support | Raindish | 120+17 | 100-12 | 100 |
| 16 |  Quagsire WATERGROUND | B | Special Tank | Waterabsorb | 65+11 | 35-6 | 35 |
| 17 |  Trapinch GROUND | B | Bulky Support | Arenatrap | 45+9 | 10-3 | 10 |
| 18 |  Whiscash WATERGROUND | C | Bulky Support | Oblivious | 71+12 | 60-8 | 60 |
| 19 |  Camerupt FIREGROUND | C | Bulky Support | Solidrock | 75+12 | 40-6 | 40 |
| 20 |  Aggron STEELROCK | C | Bulky Support | Sturdy | 60+11 | 50-7 | 50 |
| 21 |  Hypno PSYCHIC | C | Bulky Support | Innerfocus | 115+16 | 67-9 | 67 |
| 22 |  Claydol GROUNDPSYCHIC | C | Bulky Support | Levitate | 120+17 | 75-10 | 75 |
| 23 |  Volbeat BUG | C | Bulky Support | Prankster | 85+13 | 85-11 | 85 |
| 24 |  Steelix STEELGROUND | C | Bulky Support | Sturdy | 65+11 | 30-5 | 30 |
| 25 |  Wartortle WATER | C | Bulky Support | Raindish | 80+13 | 58-8 | 58 |
| 26 |  Armaldo ROCKBUG | C | Bulky Support | Battlearmor | 80+13 | 45-7 | 45 |
| 27 |  Parasect BUGGRASS | C | Bulky Support | Effect Spore | 80+13 | 30-5 | 30 |
| 28 |  Ariados BUGPOISON | C | Bulky Support | Insomnia | 70+12 | 40-6 | 40 |
| 29 |  Misdreavus GHOST | C | Bulky Support | Levitate | 85+13 | 85-11 | 85 |
| 30 |  Corsola WATERROCK | C | Bulky Support | Regenerator | 95+14 | 35-6 | 35 |
| 31 |  Meganium GRASS | C | Bulky Support | Overgrow | 100+15 | 80-10 | 80 |
| 32 |  Porygon NORMAL | C | Bulky Support | Trace | 75+12 | 40-6 | 40 |
| 33 |  Flareon FIRE | C | Physical Tank | Guts | 110+16 | 65-9 | 65 |
| 34 |  Wooper WATERGROUND | C | Bulky Support | Unaware | 25+7 | 15-4 | 15 |
| 35 |  Stantler NORMAL | C | Bulky Support | Intimidate | 65+11 | 85-11 | 85 |
| 36 |  Jigglypuff NORMALFAIRY | C | Bulky Support | Friendguard | 25+7 | 20-4 | 20 |
| 37 |  Slowpoke WATERPSYCHIC | C | Bulky Support | Oblivious | 40+9 | 15-4 | 15 |
| 38 |  Sudowoodo ROCK | C | Physical Tank | Sturdy | 65+11 | 30-5 | 30 |
| 39 |  Tangela GRASS | C | Bulky Support | Regenerator | 40+9 | 60-8 | 60 |
| 40 |  Bellossom GRASS | C | Bulky Support | Chlorophyll | 100+15 | 50-7 | 50 |
| 41 |  Dewgong WATERICE | C | Bulky Support | Thickfat | 95+14 | 70-9 | 70 |
| 42 |  Lunatone ROCKPSYCHIC | C | Bulky Support | Levitate | 85+13 | 70-9 | 70 |
| 43 |  Girafarig NORMALPSYCHIC | C | Bulky Support | Sapsipper | 65+11 | 85-11 | 85 |
| 44 |  Lileep ROCKGRASS | C | Bulky Support | Stormdrain | 87+13 | 23-5 | 23 |
| 45 |  Kangaskhan NORMAL | C | Bulky Support | Innerfocus | 80+13 | 90-11 | 90 |
| 46 |  Piloswine ICEGROUND | C | Bulky Support | Thickfat | 60+11 | 50-7 | 50 |
| 47 |  Azurill NORMALFAIRY | C | Bulky Support | Huge Power | 40+9 | 20-4 | 20 |
| 48 |  Golbat POISON | C | Bulky Support | Infiltrator | 75+12 | 90-11 | 90 |
| 49 |  Swalot POISON | C | Bulky Support | Liquidooze | 83+13 | 55-8 | 55 |
| 50 |  Gastly GHOSTPOISON | C | Bulky Support | Levitate | 35+8 | 80-10 | 80 |
| 51 |  Banette GHOST | C | Bulky Support | Cursedbody | 63+11 | 65-9 | 65 |
| 52 |  Drowzee PSYCHIC | C | Bulky Support | Innerfocus | 90+14 | 42-7 | 42 |
| 53 |  Arbok POISON | C | Bulky Support | Intimidate | 79+13 | 80-10 | 80 |
| 54 |  Chimecho PSYCHIC | C | Bulky Support | Levitate | 90+14 | 65-9 | 65 |
| 55 |  Nosepass ROCK | C | Bulky Support | Sturdy | 90+14 | 30-5 | 30 |
| 56 |  Wigglytuff NORMALFAIRY | C | Bulky Support | Competitive | 50+10 | 45-7 | 45 |
| 57 |  Onix ROCKGROUND | C | Physical Tank | Sturdy | 45+9 | 70-9 | 70 |
| 58 |  Numel FIREGROUND | C | Bulky Support | Simple | 45+9 | 35-6 | 35 |
| 59 |  Minun ELECTRIC | C | Utility | Minus | 85+13 | 95-12 | 95 |
| 60 |  Marill WATERFAIRY | C | Bulky Support | Sapsipper | 50+10 | 40-6 | 40 |
| 61 |  Togetic FAIRY | C | Bulky Support | Serenegrace | 105+15 | 40-6 | 40 |
| 62 |  Gloom GRASSPOISON | C | Bulky Support | Chlorophyll | 75+12 | 40-6 | 40 |
| 63 |  Duskull GHOST | C | Bulky Support | Levitate | 90+14 | 25-5 | 25 |
| 64 |  Teddiursa NORMAL | D | Bulky Support | Quickfeet | 50+10 | 40-6 | 40 |
| 65 |  Psyduck WATER | D | Bulky Support | Swiftswim | 50+10 | 55-8 | 55 |
| 66 |  Bayleef GRASS | D | Bulky Support | Leafguard | 80+13 | 60-8 | 60 |
| 67 |  Cleffa FAIRY | D | Bulky Support | Friendguard | 55+10 | 15-4 | 15 |
| 68 |  Smoochum ICEPSYCHIC | D | Bulky Support | Forewarn | 65+11 | 65-9 | 65 |
Rhydon
GROUND ROCK
Role
Bulky SupportAbility
Lightningrod+SpD
45 +9Spe
40Jirachi
STEEL PSYCHIC
Role
Bulky SupportAbility
Serenegrace+SpD
100 +15Spe
100Regirock
ROCK
Role
Bulky SupportAbility
Clearbody+SpD
100 +15Spe
50Slowking
WATER PSYCHIC
Role
Bulky SupportAbility
Regenerator+SpD
110 +16Spe
30Swampert
WATER GROUND
Role
Bulky SupportAbility
Torrent+SpD
90 +14Spe
60Politoed
WATER
Role
Bulky SupportAbility
Drizzle+SpD
100 +15Spe
70Porygon2
NORMAL
Role
Bulky SupportAbility
Download+SpD
95 +14Spe
60Dusclops
GHOST
Role
Bulky SupportAbility
Frisk+SpD
130 +18Spe
25Smeargle
NORMAL
Role
Bulky SupportAbility
Moody+SpD
45 +9Spe
75Cacturne
GRASS DARK
Role
Bulky SupportAbility
Waterabsorb+SpD
60 +11Spe
55Lapras
WATER ICE
Role
Bulky SupportAbility
Waterabsorb+SpD
95 +14Spe
60Forretress
BUG STEEL
Role
Bulky SupportAbility
Sturdy+SpD
60 +11Spe
40Chansey
NORMAL
Role
Bulky SupportAbility
Healer+SpD
105 +15Spe
50Vileplume
GRASS POISON
Role
Bulky SupportAbility
Effect Spore+SpD
90 +14Spe
50Tentacruel
WATER POISON
Role
Bulky SupportAbility
Raindish+SpD
120 +17Spe
100Quagsire
WATER GROUND
Role
Special TankAbility
Waterabsorb+SpD
65 +11Spe
35Trapinch
GROUND
Role
Bulky SupportAbility
Arenatrap+SpD
45 +9Spe
10Whiscash
WATER GROUND
Role
Bulky SupportAbility
Oblivious+SpD
71 +12Spe
60Camerupt
FIRE GROUND
Role
Bulky SupportAbility
Solidrock+SpD
75 +12Spe
40Aggron
STEEL ROCK
Role
Bulky SupportAbility
Sturdy+SpD
60 +11Spe
50Hypno
PSYCHIC
Role
Bulky SupportAbility
Innerfocus+SpD
115 +16Spe
67Claydol
GROUND PSYCHIC
Role
Bulky SupportAbility
Levitate+SpD
120 +17Spe
75Volbeat
BUG
Role
Bulky SupportAbility
Prankster+SpD
85 +13Spe
85Steelix
STEEL GROUND
Role
Bulky SupportAbility
Sturdy+SpD
65 +11Spe
30Wartortle
WATER
Role
Bulky SupportAbility
Raindish+SpD
80 +13Spe
58Armaldo
ROCK BUG
Role
Bulky SupportAbility
Battlearmor+SpD
80 +13Spe
45Parasect
BUG GRASS
Role
Bulky SupportAbility
Effect Spore+SpD
80 +13Spe
30Ariados
BUG POISON
Role
Bulky SupportAbility
Insomnia+SpD
70 +12Spe
40Misdreavus
GHOST
Role
Bulky SupportAbility
Levitate+SpD
85 +13Spe
85Corsola
WATER ROCK
Role
Bulky SupportAbility
Regenerator+SpD
95 +14Spe
35Meganium
GRASS
Role
Bulky SupportAbility
Overgrow+SpD
100 +15Spe
80Porygon
NORMAL
Role
Bulky SupportAbility
Trace+SpD
75 +12Spe
40Flareon
FIRE
Role
Physical TankAbility
Guts+SpD
110 +16Spe
65Wooper
WATER GROUND
Role
Bulky SupportAbility
Unaware+SpD
25 +7Spe
15Stantler
NORMAL
Role
Bulky SupportAbility
Intimidate+SpD
65 +11Spe
85Jigglypuff
NORMAL FAIRY
Role
Bulky SupportAbility
Friendguard+SpD
25 +7Spe
20Slowpoke
WATER PSYCHIC
Role
Bulky SupportAbility
Oblivious+SpD
40 +9Spe
15Sudowoodo
ROCK
Role
Physical TankAbility
Sturdy+SpD
65 +11Spe
30Tangela
GRASS
Role
Bulky SupportAbility
Regenerator+SpD
40 +9Spe
60Bellossom
GRASS
Role
Bulky SupportAbility
Chlorophyll+SpD
100 +15Spe
50Dewgong
WATER ICE
Role
Bulky SupportAbility
Thickfat+SpD
95 +14Spe
70Lunatone
ROCK PSYCHIC
Role
Bulky SupportAbility
Levitate+SpD
85 +13Spe
70Girafarig
NORMAL PSYCHIC
Role
Bulky SupportAbility
Sapsipper+SpD
65 +11Spe
85Lileep
ROCK GRASS
Role
Bulky SupportAbility
Stormdrain+SpD
87 +13Spe
23Kangaskhan
NORMAL
Role
Bulky SupportAbility
Innerfocus+SpD
80 +13Spe
90Piloswine
ICE GROUND
Role
Bulky SupportAbility
Thickfat+SpD
60 +11Spe
50Azurill
NORMAL FAIRY
Role
Bulky SupportAbility
Huge Power+SpD
40 +9Spe
20Golbat
POISON
Role
Bulky SupportAbility
Infiltrator+SpD
75 +12Spe
90Swalot
POISON
Role
Bulky SupportAbility
Liquidooze+SpD
83 +13Spe
55Gastly
GHOST POISON
Role
Bulky SupportAbility
Levitate+SpD
35 +8Spe
80Banette
GHOST
Role
Bulky SupportAbility
Cursedbody+SpD
63 +11Spe
65Drowzee
PSYCHIC
Role
Bulky SupportAbility
Innerfocus+SpD
90 +14Spe
42Arbok
POISON
Role
Bulky SupportAbility
Intimidate+SpD
79 +13Spe
80Chimecho
PSYCHIC
Role
Bulky SupportAbility
Levitate+SpD
90 +14Spe
65Nosepass
ROCK
Role
Bulky SupportAbility
Sturdy+SpD
90 +14Spe
30Wigglytuff
NORMAL FAIRY
Role
Bulky SupportAbility
Competitive+SpD
50 +10Spe
45Onix
ROCK GROUND
Role
Physical TankAbility
Sturdy+SpD
45 +9Spe
70Numel
FIRE GROUND
Role
Bulky SupportAbility
Simple+SpD
45 +9Spe
35Minun
ELECTRIC
Role
UtilityAbility
Minus+SpD
85 +13Spe
95Marill
WATER FAIRY
Role
Bulky SupportAbility
Sapsipper+SpD
50 +10Spe
40Togetic
FAIRY
Role
Bulky SupportAbility
Serenegrace+SpD
105 +15Spe
40Gloom
GRASS POISON
Role
Bulky SupportAbility
Chlorophyll+SpD
75 +12Spe
40Duskull
GHOST
Role
Bulky SupportAbility
Levitate+SpD
90 +14Spe
25Teddiursa
NORMAL
Role
Bulky SupportAbility
Quickfeet+SpD
50 +10Spe
40Psyduck
WATER
Role
Bulky SupportAbility
Swiftswim+SpD
50 +10Spe
55Bayleef
GRASS
Role
Bulky SupportAbility
Leafguard+SpD
80 +13Spe
60Cleffa
FAIRY
Role
Bulky SupportAbility
Friendguard+SpD
55 +10Spe
15Smoochum
ICE PSYCHIC
Role
Bulky SupportAbility
Forewarn+SpD
65 +11Spe
65+10%Sp. Defense
-10%Speed
Flavor Preference
Likes Bitter, dislikes Sweet
Competitive Role
Slow special walls, often paired with Trick Room.
Sassy vs Calm
Choose Sassy
+Sp. Defense / -Speed
- 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 Calm
+Sp. Defense / -Attack
- Defensive Pokemon that still need attacking power
- Pokemon that run both physical and special moves
How to Get
SynchronizeLead with a Sassy Pokemon that has the Synchronize ability. Wild Pokemon will match its nature. (Gen 3+)
BreedingGive the parent with Sassy nature an Everstone. The offspring will inherit it. (100% since Gen 5)
Nature MintUse a Sassy Mint to change stat effects to Sassy. The original nature name stays but stats change. (Gen 8+)
Other +Sp. Defense Natures
What does the Sassy nature do in Pokemon?
Sassy raises Sp. Defense by 10% and lowers Speed by 10%. At level 100 with full investment, that's roughly a 30-point swing on the boosted stat. Pokemon with Sassy nature prefer Bitter flavor and dislike Sweet.
What are the best Sassy nature Pokemon?
Top Sassy users include Rhydon, Jirachi, Regirock, and Slowking. They benefit from the Sp. Defense boost because their main damage comes from that stat. The Speed drop doesn't hurt them since they don't rely on it.
Is Sassy a good nature for competitive Pokemon?
Sassy is a strong competitive nature. The -Speed drop actually helps under Trick Room, where slower Pokemon move first. The key is matching it to Pokemon that don't need Speed in their moveset.
How do I get a Sassy nature Pokemon?
Synchronize is the fastest method. Lead with a Pokemon that has Synchronize and Sassy nature, and wild encounters match it (Gen 3+). Breeding works too: give the Sassy parent an Everstone and all offspring inherit the nature. Nature Mints (Gen 8+) let you change the stat effect to Sassy without rebreeding.
Should I use Sassy or Calm?
Sassy prioritizes Trick Room special wall, while Calm goes for standard special wall. Pick Sassy when your Pokemon's role depends on the stat it boosts. Go with Calm when standard special wall matters more for your team.