Grubbin
#34 in the Ultra Sun & Ultra Moon Pokédex • Larva Pokémon
Ultra Sun
If you find its nest, you shouldn’t stick your hand inside. You’ll get bitten by an irritated Grubbin.
Ultra Moon
It spits a sticky thread to stop opponents in their tracks, and then it grabs them in its sharp, sturdy mandibles to take them down.
Pokédexes
Egg Group
Steps to Hatch
Effort Values Yielded
Gender Ratio
Capture Rate
Base Experience
| Pokémon | Requires | Evolution |
|---|---|---|
 Grubbin #34 | Level 20 |  Charjabug #35 |
Charjabug #35 |  Use Thunder Stone |  Vikavolt #36 |
Ultra Moon
| Location | Method | Level | Chance | Conditions |
|---|---|---|---|---|
Route 1 Alola Route 1 East | Walking in tall grass or a cave | 2-3 | 15% | - |
Route 4 Alola Route 4 Area | Walking in tall grass or a cave | 11-14 | 10% | - |
Route 5 Alola Route 5 Area | Walking in tall grass or a cave | 13-16 | 20% | - |
Route 6 Alola Route 6 North | Walking in tall grass or a cave | 14-17 | 10% | - |
Route 6 Alola Route 6 South | Walking in tall grass or a cave | 14-17 | 10% | - |
Blush Mountain | Sos Encounter | 29-32 | 15% | - |
Ultra Sun
| Location | Method | Level | Chance | Conditions |
|---|---|---|---|---|
Route 1 Alola Route 1 East | Walking in tall grass or a cave | 2-3 | 15% | - |
Route 4 Alola Route 4 Area | Walking in tall grass or a cave | 11-14 | 10% | - |
Route 5 Alola Route 5 Area | Walking in tall grass or a cave | 13-16 | 20% | - |
Route 6 Alola Route 6 North | Walking in tall grass or a cave | 14-17 | 10% | - |
Route 6 Alola Route 6 South | Walking in tall grass or a cave | 14-17 | 10% | - |
Blush Mountain | Sos Encounter | 29-32 | 15% | - |
Normal
Shiny
Grubbin
Larva Pokémon
HP
47
Attack
62
Defense
45
Sp. Atk
55
Sp. Def
45
Speed
46
Total
300
Type Chart
Weaknesses
Takes 2× from
Resistances
Takes 0.5× from
| Class | Description | ||||||
|---|---|---|---|---|---|---|---|
| Start | Vise Grip |  |  Physical | 55 | 100 | 30 | The target is gripped and squeezed from both sides to inflict damage. |
| 4 | String Shot | |  Status | - | 95 | 40 | The opposing Pokémon are bound with silk blown from the user’s mouth that harshly lowers the Speed stat. |
| 7 | Mud-Slap | |  Special | 20 | 100 | 10 | The user hurls mud in the target’s face to inflict damage and lower its accuracy. |
| 10 | Bite |  | Physical | 60 | 100 | 25 | The target is bitten with viciously sharp fangs. This may also make the target flinch. |
| 13 | Bug Bite | | Physical | 60 | 100 | 20 | The user bites the target. If the target is holding a Berry, the user eats it and gains its effect. |
| 16 | Spark |  | Physical | 65 | 100 | 20 | The user throws an electrically charged tackle at the target. This may also leave the target with paralysis. |
| 19 | Acrobatics | | Physical | 55 | 100 | 15 | The user nimbly strikes the target. If the user is not holding an item, this attack inflicts massive damage. |
| 22 | Crunch | | Physical | 80 | 100 | 15 | The user crunches up the target with sharp fangs. This may also lower the target’s Defense stat. |
| 25 | X-Scissor | | Physical | 80 | 100 | 15 | The user slashes at the target by crossing its scythes or claws as if they were a pair of scissors. |
| 28 | Dig | | Physical | 80 | 100 | 10 | The user burrows, then attacks on the next turn. |
| Class | Description | |||||
|---|---|---|---|---|---|---|
| Electroweb | | Special | 55 | 95 | 15 | The user attacks and captures opposing Pokémon using an electric net. This lowers their Speed stat. |
| Endure | | Status | - | - | 10 | The user endures any attack with at least 1 HP. Its chance of failing rises if it is used in succession. |
| Harden | | Status | - | - | 30 | The user stiffens all the muscles in its body to raise its Defense stat. |
| Mud Shot | | Special | 55 | 95 | 15 | The user attacks by hurling a blob of mud at the target. This also lowers the target’s Speed stat. |
| Class | Description | ||||||
|---|---|---|---|---|---|---|---|
| TM06 | Toxic |  | Status | - | 90 | 10 | A move that leaves the target badly poisoned. Its poison damage worsens every turn. |
| TM10 | Hidden Power | | Special | 60 | 100 | 15 | A unique attack that varies in type depending on the Pokémon using it. |
| TM16 | Light Screen |  | Status | - | - | 30 | A wondrous wall of light is put up to reduce damage from special attacks for five turns. |
| TM17 | Protect | | Status | - | - | 10 | Enables the user to evade all attacks. Its chance of failing rises if it is used in succession. |
| TM18 | Rain Dance |  | Status | - | - | 5 | The user summons a heavy rain that falls for five turns, powering up Water-type moves. It lowers the power of Fire-type moves. |
| TM21 | Frustration | | Physical | - | 100 | 20 | This full-power attack grows more powerful the less the user likes its Trainer. |
| TM24 | Thunderbolt | | Special | 90 | 100 | 15 | A strong electric blast crashes down on the target. This may also leave the target with paralysis. |
| TM27 | Return | | Physical | - | 100 | 20 | This full-power attack grows more powerful the more the user likes its Trainer. |
| TM32 | Double Team | | Status | - | - | 15 | By moving rapidly, the user makes illusory copies of itself to raise its evasiveness. |
| TM42 | Facade | | Physical | 70 | 100 | 20 | This attack move doubles its power if the user is poisoned, burned, or paralyzed. |
| TM44 | Rest | | Status | - | - | 5 | The user goes to sleep for two turns. This fully restores the user’s HP and heals any status conditions. |
| TM45 | Attract | | Status | - | 100 | 15 | If it is the opposite gender of the user, the target becomes infatuated and less likely to attack. |
| TM48 | Round | | Special | 60 | 100 | 15 | The user attacks the target with a song. Others can join in the Round to increase the power of the attack. |
| TM57 | Charge Beam | | Special | 50 | 90 | 10 | The user attacks with an electric charge. The user may use any remaining electricity to raise its Sp. Atk stat. |
| TM62 | Acrobatics | | Physical | 55 | 100 | 15 | The user nimbly strikes the target. If the user is not holding an item, this attack inflicts massive damage. |
| TM72 | Volt Switch | | Special | 70 | 100 | 20 | After making its attack, the user rushes back to switch places with a party Pokémon in waiting. |
| TM73 | Thunder Wave | | Status | - | 90 | 20 | The user launches a weak jolt of electricity that paralyzes the target. |
| TM81 | X-Scissor | | Physical | 80 | 100 | 15 | The user slashes at the target by crossing its scythes or claws as if they were a pair of scissors. |
| TM84 | Poison Jab | | Physical | 80 | 100 | 20 | The target is stabbed with a tentacle or arm steeped in poison. This may also poison the target. |
| TM87 | Swagger | | Status | - | 85 | 15 | The user enrages and confuses the target. However, this also sharply raises the target’s Attack stat. |
| TM88 | Sleep Talk | | Status | - | - | 10 | While it is asleep, the user randomly uses one of the moves it knows. |
| TM90 | Substitute | | Status | - | - | 10 | The user makes a copy of itself using some of its HP. The copy serves as the user’s decoy. |
| TM93 | Wild Charge | | Physical | 90 | 100 | 15 | The user shrouds itself in electricity and smashes into its target. This also damages the user a little. |
| TM100 | Confide | | Status | - | - | 20 | The user tells the target a secret, and the target loses its ability to concentrate. This lowers the target’s Sp. Atk stat. |
| Class | Description | |||||
|---|---|---|---|---|---|---|
| Bug Bite | | Physical | 60 | 100 | 20 | The user bites the target. If the target is holding a Berry, the user eats it and gains its effect. |
| Electroweb | | Special | 55 | 95 | 15 | The user attacks and captures opposing Pokémon using an electric net. This lowers their Speed stat. |
| Magnet Rise | | Status | - | - | 10 | The user levitates using electrically generated magnetism for five turns. |
| Shock Wave | | Special | 60 | - | 20 | The user strikes the target with a quick jolt of electricity. This attack never misses. |
| Snore | | Special | 50 | 100 | 15 | This attack can be used only if the user is asleep. The harsh noise may also make the target flinch. |
Swarm
Ability Slot 1
Powers up Bug-type moves when the Pokémon’s HP is low.
Strengthens Bug moves to inflict 1.5× damage at 1/3 max HP or less.