Grubbin sits at the start of its evolution line — not yet at full power, but that changes fast. Most trainers push through to Vikavolt as fast as possible. Introduced in Gen 7. Only weak to Fire, Flying, and Rock.
An unusually even spread gives Grubbin flexibility. Attack barely edges ahead. But Defense isn't far off. Easy to catch and follows a medium-fast 1M XP curve. Yields 1 Attack EV.
Its strong jaw enables it to scrape trees and slurp out the sap. It normally lives underground.
They often gather near places frequented by electric Pokémon in order to avoid being attacked by bird Pokémon.
Grubbin Weakness
AvgGrubbin is weak to Fire, Flying, and Rock-type moves. Standard number of weaknesses for the Bug typing.
Three stages ahead. Grubbin grows into Charjabug, then pushes on to Vikavolt. Check the evolution methods below. For breeding, quick to hatch with no compatible partners via one egg group. Evolving adds up to 200 stat points total.
How to Evolve
Breed Grubbin easily from the Bug egg group. Pass egg moves like Electroweb, Endure, Harden and 1 more to offspring.
Best Build
No build content available for this Pokemon in Gen 7.
Try selecting a different game/generation filter, or check back later.
Breeding opens up real options for Grubbin. Electroweb and Endure come exclusively from egg moves, and they're worth the effort. The rest of the kit covers basics through X-Scissor and Bug Bite and Normal and Ground coverage and more.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
10 encounter spots for Grubbin at moderate rates starting from early-game routes. Best and Earliest sort options below help narrow down your approach based on odds vs. Accessibility.
Best Locations
Before you go hunting for Grubbin, check which of the 10 spots belong to your version. Moon and Sun each have different walking encounters at Lv. 3-17.
Grubbin is meant to evolve into Charjabug. At 300 BST, the stats aren't there for competitive play yet. Pre-evolution Pokemon rarely hold up against fully evolved threats.
Grubbin's biggest threats include Arcanine (Fire), Talonflame (Flying), and Golem (Rock), all carrying super-effective STAB moves.
Grubbin evolves into Charjabug at level 20. Grubbin is the base form in a 3-stage evolutionary line.
Swarm is the go-to ability for Grubbin. It strengthens bug moves to inflict 1.5× damage at 1/3 max HP or less. It's Grubbin's only ability.
Base 46 Speed is low. Priority moves or Trick Room are the way to go. On offense, Grubbin is leaning toward the physical side (base 62 Attack). Defensively? Fragile — can't afford to take many hits.
Grubbin can be found in Scarlet & Violet, Sword & Shield, Sun & Moon, and Ultra Sun & Ultra Moon.
Grubbin joined the series in Sun & Moon and has been available in 4 titles so far. With 3 generations of appearances, it's established itself despite the later start.
- Gen IY
Yellow - Gen IRB

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 VIISMDebut

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
