RASH 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 Rash 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 RASH NATURE POKEMON
Need more Sp. Attack without giving up physical power? Rash drops Sp. Defense instead, which stings against special hits. In Yellow, top picks include Horsea, Nidoking, Exeggutor, and more. Natures weren't in Yellow. Competitive players apply Rash when breeding these Pokemon in Gen 3+ games.
Rash raises Sp. Attack by 10% and lowers Sp. Defense by 10%. Special attackers willing to sacrifice special bulk. 7 Pokemon competitively run this nature.
| # | Pokemon | Tier | Role | Ability | +SpA | -SpD | Spe |
|---|---|---|---|---|---|---|---|
| 1 |  Horsea WATER | C | Special Attacker | Swiftswim | 70+12 | 25-5 | 60 |
| 2 |  Nidoking POISONGROUND | C | Utility | Poison Point | 85+13 | 75-10 | 85 |
| 3 |  Exeggutor GRASSPSYCHIC | C | Special Attacker | Chlorophyll | 125+17 | 75-10 | 55 |
| 4 |  Goldeen WATER | D | Special Revenge Killer | Swiftswim | 35+8 | 50-7 | 63 |
| 5 |  Exeggcute GRASSPSYCHIC | D | Utility | Chlorophyll | 60+11 | 45-7 | 40 |
| 6 |  Squirtle WATER | D | Bulky Support | Torrent | 50+10 | 64-9 | 43 |
| 7 |  Nidorino POISON | D | Special Tank | Hustle | 55+10 | 55-8 | 65 |
Horsea
WATER
Role
Special AttackerAbility
Swiftswim+SpA
70 +12Spe
60Nidoking
POISON GROUND
Role
UtilityAbility
Poison Point+SpA
85 +13Spe
85Exeggutor
GRASS PSYCHIC
Role
Special AttackerAbility
Chlorophyll+SpA
125 +17Spe
55Goldeen
WATER
Role
Special Revenge KillerAbility
Swiftswim+SpA
35 +8Spe
63Exeggcute
GRASS PSYCHIC
Role
UtilityAbility
Chlorophyll+SpA
60 +11Spe
40Squirtle
WATER
Role
Bulky SupportAbility
Torrent+SpA
50 +10Spe
43Nidorino
POISON
Role
Special TankAbility
Hustle+SpA
55 +10Spe
65RASH NATURE GUIDE
+10%Sp. Attack
-10%Sp. Defense
Flavor Preference
Likes Dry, dislikes Bitter
Competitive Role
Special attackers willing to sacrifice special bulk.
Rash vs Modest
Choose Rash
+Sp. Attack / -Sp. Defense
- Pokemon that benefit from maximizing Sp. Attack
- Builds where the -Sp. Defense penalty is irrelevant
Choose Modest
+Sp. Attack / -Attack
- Pokemon that need Sp. Attack more than Sp. Attack
- Builds where -Sp. Defense is too costly
How to Get
SynchronizeLead with a Rash Pokemon that has the Synchronize ability. Wild Pokemon will match its nature. (Gen 3+)
BreedingGive the parent with Rash nature an Everstone. The offspring will inherit it. (100% since Gen 5)
Nature MintUse a Rash Mint to change stat effects to Rash. The original nature name stays but stats change. (Gen 8+)
Other +Sp. Attack Natures
RASH FAQs
What does the Rash nature do in Pokemon?
Rash raises Sp. 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 Rash nature prefer Dry flavor and dislike Bitter.
What are the best Rash nature Pokemon?
Top Rash users include Horsea, Nidoking, Exeggutor, and Goldeen. They benefit from the Sp. 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 Rash a good nature for competitive Pokemon?
Rash 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 Rash nature Pokemon?
Synchronize is the fastest method. Lead with a Pokemon that has Synchronize and Rash nature, and wild encounters match it (Gen 3+). Breeding works too: give the Rash parent an Everstone and all offspring inherit the nature. Nature Mints (Gen 8+) let you change the stat effect to Rash without rebreeding.
Should I use Rash or Modest?
Rash prioritizes mixed offense, while Modest goes for dedicated special. Pick Rash when your Pokemon's role depends on the stat it boosts. Go with Modest when dedicated special matters more for your team.