Stats & Training
Nothing fancy in Grumpig's spread. It leans special with Sp. Def out front. And you'll get 2 Sp. Def EVs per KO for it. Follows a fast 800K XP curve.
GRUMPIG uses the black pearls on its body to amplify its psychic power waves for gaining total control over its foe. When this POKéMON uses its special power, its snorting breath grows labored.
GRUMPIG uses the black pearls on its body to wield its fantastic powers. When it is doing so, it dances bizarrely. This POKéMON’s black pearls are valuable as works of art.
Grumpig Weakness
Type-wise, Grumpig takes extra damage from Bug, Ghost, and Dark. Thick Fat reduces Fire/Ice damage, further improving the defensive spread. Grumpig's special bulk (base 110 Sp.Def) helps absorb special-type weaknesses, though physical moves exploit the lower Defense.
| Damage | Types |
|---|---|
| 2x (Weak) | Bug, Ghost, Dark |
| 0.5x (Resist) | Fighting, Psychic |
- Dark and Steel types added — Fairy does not exist yet
- Moves are Physical or Special based on type, not per move
In Ruby & Sapphire, Forretress's Explosion hits Grumpig for 71-84%. Houndoom's Crunch hits Grumpig for 59-70%. Dusclops deals 51-60% with Shadow Ball.
Forretress BugSteel | B | |
Recommended Build AbilitySturdy ItemLeftovers NatureCareful Moves
Damage vs Grumpig View Forretress builds →Rapid Spin14-17% Explosion71-84% Earthquake29-34% | ||
Houndoom DarkFire | B | |
Recommended Build AbilityFlashfire ItemLeftovers NatureTimid Moves
Damage vs Grumpig View Houndoom builds →Pursuit 2x30-35% Fire Blast41-48% Crunch 2x59-70% | ||
Dusclops Ghost | B | |
Recommended Build AbilityPressure ItemLeftovers NatureCalm Moves
Damage vs Grumpig View Dusclops builds →Shadow Ball 2x51-60% | ||
Ruby & Sapphire Evolution
Grumpig is what Spoink becomes. Breed it for Spoink eggs (average hatch time). A massive partner pool for breeding via one egg group. Eggs are average hatch time. The evolution from Spoink pushed Grumpig to 470 total stats. Defense saw the largest single gain at +30. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed with Grumpig to get Spoink eggs easily using 102 partners from the Ground egg group. Notable egg moves include Extrasensory, Future Sight, Substitute and 1 more.
Ruby & Sapphire Grumpig Best Moveset
Find one free turn for Calm Mind and Grumpig can run through teams. Hasty nature leans fast mixed, Thickfat supports the sweep, and utility options stops anything from walling it cleanly.
Best Build
Grumpig best EVs are HP and Speed
Bulky Support Moveset
- Psychic
- Fire Punch
- Calm Mind
- Trick
Recommended Teammates
Moves
Breeding's the move. Extrasensory and Future Sight give Grumpig options it can't learn any other way, and coverage across 7 types already covers a decent range on top of Future Sight and Psychic. The egg moves push it further.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
How to Get Grumpig in Ruby & Sapphire
You're catching Spoink first, not Grumpig. Spoink appears at decent rates in the encounters below. The step cards map the full 2-stage line with evolution methods between each stage.
How to Obtain Grumpig in Ruby & Sapphire
Step 1Catch SpoinkJagged PassRubyGrass Lv.18-2020%MidJagged PassSapphireGrass Lv.20-2220%Mid
Step 2Grumpig ✓
Grumpig Guide
In Ruby & Sapphire, Grumpig looks average on paper at 470 BST. But Thick Fat is why it sees play. Build around that and it pulls its weight. C-Tier on our tier list. Psychic with Leftovers is the standard set.
In Ruby & Sapphire, Grumpig's biggest threats include Heracross (Bug), Misdreavus (Ghost), and Houndoom (Dark), all carrying super-effective STAB moves.
Grumpig gets Thick Fat, Own Tempo, and Gluttony. But Thick Fat is the one that matters. It's the centerpiece of every viable set. Build around that.
Grumpig is a special attacker with base 90 Sp. Atk. Enough bulk to take a hit or two, too. Speed tells the real story. Base 80 Speed is workable. Faster than some, slower than many.
In Ruby & Sapphire, the best way to handle Grumpig: Super-effective STAB from faster Pokemon is the simplest answer. Bug, Ghost, and Dark-type attackers hit hardest.
Game Availability
Debuting in Ruby & Sapphire, Grumpig appears in 15 games across 8 generations. A reliable presence in most mainline games, typically found through wild encounters.
Click a game to view version-specific details
- Gen 1Y
Yellow - Gen 1RB

Red & Blue - Gen 2GS

Gold & Silver - Gen 2C
Crystal - Gen 3RSDebut

Ruby & Sapphire - Gen 3FRLG

FireRed & LeafGreen - Gen 3E
Emerald - Gen 4Pt
Platinum - Gen 4HGSS

HeartGold & SoulSilver - Gen 4DP

Diamond & Pearl - Gen 5BW

Black & White - Gen 5B2W2

Black 2 & White 2 - Gen 6XY

X & Y - Gen 6ORAS

Omega Ruby & Alpha Sapphire - Gen 7USUM

Ultra Sun & Ultra Moon - Gen 7SM

Sun & Moon - Gen 7LGPE

Let's Go Pikachu & Eevee - Gen 8SwSh

Sword & Shield - Gen 8PLA
Legends: Arceus - Gen 8BDSP

Brilliant Diamond & Shining Pearl - Gen 9SV

Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW

Winds & Waves