Grimer sits at the start of its evolution line — not yet at full power, but that changes fast. Most trainers push through to Muk as fast as possible. Only weak to Ground and Psychic. Known as the Sludge Pokemon.
HP and Attack carry most of Grimer's stat budget. Speed's the obvious dump stat. Common in the wild and yields 1 HP EV. Follows a medium-fast 1M XP curve.
It has a passion for trash above all else, speedily digesting it and creating brilliant crystals of sparkling poison.
Grimer Weakness
GoodGrimer is weak to Ground and Psychic-type moves. 5 resistances help offset the weaknesses. Just 2 weak spots to worry about, which keeps teambuilding straightforward.
One evolution ahead. Grimer grows into Muk through a straightforward two-stage chain. No compatible partners for breeding via one egg group. Eggs are average hatch time. Evolving adds up to 175 stat points total.
How to Evolve
Breed Grimer easily from the Indeterminate egg group.
Best Build
Let's Go Pikachu & Eevee uses different battle mechanics.
Competitive build content is not applicable for this game. Select a main series game for builds.
TMs carry this one. Grimer learns Sludge Bomb and Poison Jab naturally for STAB, but the offensive range comes almost entirely from technical machines. Normal and Ground and beyond give it real matchup play.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Grimer starts showing up in late-game routes at high spawn rates across 4 encounter spots. The list below is sorted so you can pick what fits your current progress without scrolling through everything.
Best Locations
Walking and trade encounters at Lv. 37-44 across 4 spots for Grimer. Sorted by progression so you can see what's reachable at your current point in the game.
Grimer is meant to evolve into Muk. At 325 BST, the stats aren't there for competitive play yet. Pre-evolution Pokemon rarely hold up against fully evolved threats.
Grimer can evolve into Muk and Alolan Muk depending on the method. Grimer is the base form in a 3-stage evolutionary line.
Stench is the go-to ability for Grimer. It has a 10% chance of making target Pokémon flinch with each hit. Its hidden ability Poison Touch can work in specific setups. Sticky Hold is the other option — pick based on what your team needs.
Base 25 Speed is low. Priority moves or Trick Room are the way to go. On offense, Grimer is leaning toward the physical side (base 80 Attack). Best used as a trick room.
Grimer appears in 19 games, including Yellow, Red & Blue, and Gold & Silver.
Since debuting in Red & Blue, Grimer has appeared in 19 titles over 9 generations. Along the way, it received an Alolan form in Generation 7, keeping it relevant across different competitive metas.
- Gen IY
Yellow - Gen IRBDebut
Red & Blue - Gen IIGS
Gold & Silver - Gen IIC
Crystal - Gen IIIRS
Ruby & Sapphire - Gen IIIFRLG
FireRed & LeafGreen - Gen IIIE
Emerald - Gen IVPt
Platinum - Gen IVHGSS
HeartGold & SoulSilver - Gen IVDP
Diamond & Pearl - Gen VBW
Black & White - Gen VB2W2
Black 2 & White 2 - Gen VIXY
X & Y - Gen VIORAS
Omega Ruby & Alpha Sapphire - Gen VIIUSUM
Ultra Sun & Ultra Moon - Gen VIISMAlolan
Sun & Moon - Gen VIILGPE
Let's Go Pikachu & Eevee - Gen VIIISwSh
Sword & Shield - Gen VIIIPLA
Legends: Arceus - Gen VIIIBDSP
Brilliant Diamond & Shining Pearl - Gen IXSV
Scarlet & Violet - Gen IXLZA
Legends: Z-A