Mixed
Trick Room
25Speed · Very Slow

Is Grimer Good in Omega Ruby & Alpha Sapphire Playthrough?

Grimer shows up in Hoenn's industrial routes. Poison typing doesn't have exciting matchups against Hoenn's gym leaders, but Muk's bulk makes it a decent physical sponge if nothing better fills the slot.

StrongGoodEvenToughBadEEEEETTEGTETTRoxanneGym 1BrawlyGym 2WattsonGym 3FlanneryGym 4GrimerCatchableNormanGym 5WinonaGym 6MukEvolveTate & LizaGym 7WallaceGym 8SidneyE4PhoebeE4GlaciaE4DrakeE4StevenChamp*
Roxanne
Gym 1
Even

Grimer trades roughly evenly with Roxanne's team.

Even
Geodude
Lv 12
RockGround
Sturdy
TackleDefense CurlRock Tomb
Risky
Nosepass
Lv 14
Rock
Magnet Pull
TackleHardenRock Tomb
Brawly
Gym 2
Even

Grimer trades roughly evenly with Brawly's team.

Even
Machop
Lv 14
Fighting
Guts
LeerKarate ChopSeismic TossBulk Up
Even
Makuhita
Lv 16
Fighting
Guts
Arm ThrustKnock OffSand AttackBulk Up
Wattson
Gym 3
Even

Grimer trades roughly evenly with Wattson's team.

Risky
Magnemite
Lv 19
ElectricSteel
Sturdy
Thunder WaveTackleVolt Switch
Even
Voltorb
Lv 19
Electric
Soundproof
RolloutChargeVolt Switch
Risky
Magneton
Lv 21
ElectricSteel
Magnet Pull
SupersonicMagnet BombVolt Switch
Flannery
Gym 4
Even

Grimer trades roughly evenly with Flannery's team.

Even
Slugma
Lv 26
Fire
Flame Body
OverheatRock ThrowLight ScreenSunny Day
Risky
Numel
Lv 26
FireGround
Simple
Earth PowerLava PlumeAmnesiaSunny Day
Even
Torkoal
Lv 28
Fire
White Smoke
OverheatBody SlamCurseSunny Day
Norman
Gym 5
Even

Grimer trades roughly evenly with Norman's team.

Even
Slaking
Lv 28
Normal
Truant
EncoreRetaliateYawnFeint Attack
Even
Vigoroth
Lv 28
Normal
Vital Spirit
Fury SwipesFeint AttackRetaliateEncore
Risky
Slaking
Lv 30
Normal
Truant
Chip AwaySwaggerRetaliateFeint Attack
Winona
Gym 6
Tough

Winona's team hits Grimer's weaknesses hard.

Even
Swellow
Lv 33
NormalFlying
Guts
Quick AttackAerial AceDouble TeamEndeavor
Even
Pelipper
Lv 33
WaterFlying
Keen Eye
Water PulseRoostProtectAerial Ace
Risky
Skarmory
Lv 33
SteelFlying
Keen Eye
Sand AttackAir CutterSteel WingAerial Ace
Risky
Altaria
Lv 35
DragonFlying
Natural Cure
EarthquakeDragon BreathCotton GuardRoost
Tate & Liza
Gym 7
Tough

Tate & Liza's team hits Muk's weaknesses hard.

Risky
Lunatone
Lv 45
RockPsychic
LevitateImmune to Ground attacks
Light ScreenPsychicHypnosisCalm Mind
Risky
Solrock
Lv 45
RockPsychic
LevitateImmune to Ground attacks
Sunny DayRock SlidePsychicSolar Beam
Wallace
Gym 8
Even

Muk trades roughly evenly with Wallace's team.

You Win
Luvdisc
Lv 44
Water
Swift Swim
Water PulseAttractSweet KissDraining Kiss
Risky
Whiscash
Lv 44
WaterGround
Oblivious
Mud SportWaterfallZen HeadbuttEarthquake
You Win
Sealeo
Lv 44
IceWater
Thick Fat
EncoreBody SlamAurora BeamWaterfall
Even
Seaking
Lv 44
Water
Swift Swim
Aqua RingRain DanceWaterfallHorn Drill
Even
Milotic
Lv 46
Water
Marvel Scale
Hydro PumpDisarming VoiceRecoverIce Beam
Sidney
Elite Four
Good

Muk has the type edge here and should clean up Sidney's team.

You Win
Mightyena
Lv 50
Dark
Intimidate
SwaggerTake DownSucker PunchCrunch
You Win
Shiftry
Lv 50
GrassDark
Chlorophyll
Fake OutFeint AttackExtrasensoryLeaf Blade
Easy KO
Cacturne
Lv 50
GrassDark
Sand Veil
Leech SeedPaybackNeedle ArmSpiky Shield
You Win
Sharpedo
Lv 50
WaterDark
Rough Skin
CrunchPoison FangAqua JetSlash
Even
Absol
Lv 52
Dark
Super Luck
Aerial AceNight SlashPsycho CutSlash
Phoebe
Elite Four
Tough

Phoebe's team hits Muk's weaknesses hard.

Even
Dusclops
Lv 51
Ghost
Pressure
Shadow PunchConfuse RayCurseFuture Sight
Even
Banette
Lv 51
Ghost
Insomnia
Shadow BallSpiteWill O WispFeint Attack
Risky
Sableye
Lv 51
DarkGhost
Prankster
Shadow ClawFoul PlayPower GemFake Out
Even
Banette
Lv 51
Ghost
Insomnia
Shadow BallGrudgeToxicPsychic
Risky
Dusknoir
Lv 53
Ghost
Pressure
HexFire PunchIce PunchThunder Punch
Glacia
Elite Four
Even

Muk trades roughly evenly with Glacia's team.

You Win
Glalie
Lv 52
Ice
Inner Focus
Light ScreenIce ShardHailCrunch
Even
Froslass
Lv 52
IceGhost
Snow Cloak
Confuse RayBlizzardHailOminous Wind
You Win
Glalie
Lv 52
Ice
Inner Focus
ProtectIce ShardHailFreeze Dry
Even
Froslass
Lv 52
IceGhost
Snow Cloak
Draining KissBlizzardHailShadow Ball
Even
Walrein
Lv 54
IceWater
Thick Fat
SurfBody SlamBlizzardSheer Cold
Drake
Elite Four
Tough

Drake's team hits Muk's weaknesses hard.

Even
Altaria
Lv 53
DragonFlying
Natural Cure
Aerial AceCotton GuardDragon PulseMoonblast
Avoid
Flygon
Lv 53
GroundDragon
LevitateImmune to Ground attacks
EarthquakeDragon ClawRock SlideSupersonic
Even
Kingdra
Lv 53
WaterDragon
Sniper
Dragon PulseSurfYawnIce Beam
Risky
Flygon
Lv 53
GroundDragon
LevitateImmune to Ground attacks
FlamethrowerBoomburstDragon PulseScreech
Risky
Salamence
Lv 55
DragonFlying
Intimidate
Dragon RushZen HeadbuttCrunchThunder Fang
Steven
Champion
Tough

Steven's team hits Muk's weaknesses hard.

Risky
Skarmory
Lv 57
SteelFlying
Sturdy
ToxicAerial AceSpikesSteel Wing
Risky
Claydol
Lv 57
GroundPsychic
LevitateImmune to Ground attacks
ReflectLight ScreenExtrasensoryEarth Power
Risky
Aggron
Lv 57
SteelRock
Sturdy
Stone EdgeEarthquakeIron TailDragon Claw
You Win
Cradily
Lv 57
RockGrass
Suction Cups
Giga DrainAncient PowerSludge BombConfuse Ray
Risky
Armaldo
Lv 57
RockBug
Battle Armor
X ScissorRock BlastMetal ClawCrush Claw
Avoid
Metagross
Lv 59
SteelPsychic
Clear Body
Bullet PunchZen HeadbuttMeteor MashGiga Impact
Catchable
Available after Badge 4
Type
Poison

Catch Grimer on Fiery Path (walking, Lv 15, common).

View Grimer locations

Evolve Grimer to Muk
Level 38
Type
Poison

Your Grimer should hit Level 38 before you reach Tate & Liza, at typical leveling pace.

How to Get Grimer in Omega Ruby & Alpha Sapphire

high spawn rates in early-game routes across 2 locations. Grimer's one of the easier catches on the list. Knock it out fast and save your time for harder targets.

Where To Catch Grimer in ORAS

  1. Grimer
    Step 1Grimer
    Fiery Path
    Lv.15Cave
    Alpha SapphireRate 30%
    Fiery Path
    Lv.15Cave
    Omega RubyRate 5%
  2. Muk
    Step 2Evolve into Muk

Grimer Weakness

Grimer is weak to Ground and Psychic. 5 resistances help offset the weaknesses. Just 2 weak spots to worry about, which keeps teambuilding straightforward.

Grimer Weakness and Resistance Chart
DamageTypes
2x (Weak)Ground, Psychic
0.5x (Resist)Grass, Fighting, Poison, Bug, Fairy

What is Grimer Weak Against

Good
2Weak
5Resist
0Immune
Score+1
4xCritical
None
¼xResist
None
0xImmune
None

What is Grimer Strong Against

2Strong
4Resisted
1Immune
Score-3
2xStrong
0xImmune

Best Pokemon Against Grimer

Grimer Evolutions

One evolution ahead. Grimer grows into Muk through a straightforward two-stage chain. A decent partner pool for breeding via one egg group. Eggs are average hatch time. Evolving adds up to 175 stat points total. View every chain in the Evolution Chart.

How to Evolve

2 Forms
Stat Comparison 2 Stages
Grimer
Poison
Muk
Poison
HP
80
105+25
ATK
80
105+25
DEF
50
75+25
SP.ATK
40
65+25
SP.DEF
50
100+50
SPE
25
50+25
BST
325C-Tier
500C-Tier+175
ROLE
Trick Room
Tank
TYPE
Physical
Physical

Breeding

Very Easy

Breed Grimer easily with 49 breeding partners from the Indeterminate egg group. Pass egg moves like Acid Spray, Curse, Haze and 9 more to offspring.

Egg Groups
Gender
50.0%50.0%
Hatch Time
20 cycles·5,140 steps
Quick~5 min with Flame Body
Egg Moves
12moves
Breed With (best first)
gardevoirgalladegastrodonstunfisktrevenantshellosphantumpcofagriguskirliacastformraltsyamask

ORAS Grimer Best Moveset

Poison at 80 Attack with AbilityPoison Touch adding a 30%% poison chance to contact moves. The moveset fires at pre-evolution stats. AbilitySticky Hold prevents item removal. Muk one evolution away adds 105 Attack and 105 HP.

Best Build

Experimental
Utility
Ability
Poison Touch
Item
Life OrbPOWER
Best Nature for Grimer

Grimer best EVs are Attack and Sp. Def

EVs

Utility Moveset

  • Acid ArmorSTAB
  • Thunder Punch
  • IncinerateCoverage
  • Power Up Punch

Moves List

The TM pool is where it gets interesting. Coverage across 11 types means almost nothing walls Grimer cleanly, with Gunk Shot and Belch anchoring the STAB side. Matchup flexibility isn't a problem.

Level-Up Moves

Lv 1
Poison Gas
9040Poison
Lv 1
Pound
D4010035Normal
Lv 4
Harden
D30Normal
Lv 7
Mud-Slap
2010010Ground
Lv 12
Disable
D10020Normal
Lv 15
Sludge
A9710020Poison
Lv 18
Mud Bomb
D658510Ground
Lv 21
Minimize
10Normal
Lv 26
Fling
D10010Dark
Lv 29
Sludge Bomb
D13510010Poison
Lv 32
Sludge Wave
D14210010Poison
Lv 37
Screech
8540Normal
Lv 40
Gunk Shot
C180805Poison
Lv 43
Acid Armor
B20Poison
Lv 46
Belch
1809010Poison
Lv 48
Memento
C10010Dark

TM Moves

TM
TM45
Attract
C10015Normal
TM100
Confide
20Normal
TM28
Dig
C8010010Ground
TM32
Double Team
15Normal
TM64
Explosion
B2501005Normal
TM42
Facade
D7010020Normal
TM38
Fire Blast
D110855Fire
TM35
Flamethrower
D9010015Fire
TM56
Fling
D10010Dark
TM21
Frustration
D10020Normal
TM10
Hidden Power
D6010015Normal
TM59
Incinerate
A6010015Fire
TM83
Infestation
D2010020Bug
TM66
Payback
5010010Dark
TM84
Poison Jab
A12010020Poison
TM98
Power-Up Punch
A4010020Fighting
TM17
Protect+4
C10Normal
TM18
Rain Dance
C5Water
TM44
Rest
C10Psychic
TM27
Return
D10020Normal
TM80
Rock Slide
D759010Rock
TM39
Rock Tomb
D609515Rock
TM48
Round
6010015Normal
TM94
Secret Power
7010020Normal
TM30
Shadow Ball
D8010015Ghost
TM88
Sleep Talk
C10Normal
TM36
Sludge Bomb
D13510010Poison
TM34
Sludge Wave
D14210010Poison
HM04
Strength
C8010015Normal
TM90
Substitute
C10Normal
TM11
Sunny Day
C5Fire
TM87
Swagger
9015Normal
TM12
Taunt
C10020Dark
TM46
Thief
D6010025Dark
TM25
Thunder
D1107010Electric
TM24
Thunderbolt
D9010015Electric
TM41
Torment
10015Dark
TM06
Toxic
C9010Poison
TM09
Venoshock
D9710010Poison

Egg Moves

Egg
Egg
Acid Spray
D6010020Poison
Egg
Curse
C10Ghost
Egg
Haze
C30Ice
Egg
Imprison
10Psychic
Egg
Lick
D3010030Ghost
Egg
Mean Look
5Normal
Egg
Scary Face
10010Normal
Egg
Shadow Punch
D6020Ghost
Egg
Shadow Sneak+1
A4010030Ghost
Egg
Spit Up
10010Normal
Egg
Stockpile
D20Normal
Egg
Swallow
10Normal

Tutor Moves

Tut
Tutor
Fire Punch
C7510015Fire
Tutor
Giga Drain
D7510010Grass
Tutor
Gunk Shot
C180805Poison
Tutor
Ice Punch
A7510015Ice
Tutor
Pain Split
C20Normal
Tutor
Shock Wave
6020Electric
Tutor
Snore
D5010015Normal
Tutor
Thunder Punch
B7510015Electric

Transfer Moves

Gen
Gen 3
Body Slam
C8510015Normal
Gen 4
Captivate
10020Normal
Gen 3
Dynamic Punch
D100505Fighting
Gen 4
Endure+4
D10Normal
Gen 3
Mimic
10Normal
Gen 4
Natural Gift
D10015Normal

Base Stats

Base Stats
Avg
HP80
C
Attack80
C
Defense50
D
Sp. Atk40
D
Sp. Def50
D
Speed25
F
Total325
Details
Catch Rate
Easy190 / 255
Growth Rate
Medium Fast1M XP
Height0.9 m
Weight30.0 kg
Base XP65
Abilities
Stench
Has a 10% chance of making target Pokémon flinch with each hit.
Sticky Hold
Prevents a held item from being removed by other Pokémon.
Poison TouchHidden Ability
Has a 30% chance of poisoning target Pokémon upon contact.
EV Yield
HP+1AtkDefSpASpDSpe
HP training source
Pokedex Entry

Grimer’s sludgy and rubbery body can be forced through any opening, however small it may be. This Pokémon enters sewer pipes to drink filthy wastewater.

Grimer emerged from the sludge that settled on a polluted seabed. This Pokémon loves anything filthy. It constantly leaks a horribly germ-infested fluid from all over its body.

Grimer Omega Ruby & Alpha Sapphire Guide

  • For Omega Ruby & Alpha Sapphire, you can run Grimer through the first few routes without issues. 325 BST won't carry you far though. Get it to Muk as fast as you can.

  • Yes. Alolan Grimer is a regional variant with different typing and a reworked stat spread. Introduced in Gen 7. Plays completely differently from the original.

Game Availability

Since debuting in Red & Blue, Grimer has appeared in 19 titles over 10 generations. Along the way, it received an Alolan form in Generation 7, keeping it relevant across different competitive metas.

Was this page helpful?
Thanks for your feedback!
Want to tell us more?
What was most useful?
What could be improved?
Thanks for your feedback