Pokémon GO · #736 · Bug
Grubbin in Pokémon GO
Grubbin (#736) is a Bug-type Pokémon. In Pokémon GO its max CP is 1,112 at level 50, 984 at level 40 and 1,126 as a best buddy at level 51. Its highest-damage moveset is Bug Bite with X Scissor. It takes extra damage from Fire, Flying and Rock attacks.
| Type | Bug |
|---|---|
| Pokédex number | #736 |
| Base Attack / Defense / Stamina | 115 / 85 / 132 |
| Max CP, level 40 / 50 / 51 | 984 / 1,112 / 1,126 |
| Max HP, level 50 | 123 |
| Buddy distance | 1 km per Candy |
| Second Charged Attack | 10,000 Stardust and 25 Candy |
| Height / weight | 0.4 m / 4.4 kg |
Grubbin evolution
Pokémon GO has no evolution levels: a Pokémon evolves when you spend Candy on it (sometimes with an item or a task), at any level.
Grubbin evolves into Charjabug for 25 Grubbin Candy.
Family: Grubbin · Charjabug · Vikavolt
Grubbin CP by level
Combat Power with perfect stats (15/15/15) and with 10/10/10. Players find that raid, egg and research catches never have a stat below 10; that floor is their measurement, not a number in the game data.
| Level | CP 15/15/15 | CP 10/10/10 | HP 15/15/15 | Note |
|---|---|---|---|---|
| 15 | 421 | 388 | 76 | research rewards are at most level 15 (game master) |
| 20 | 562 | 518 | 87 | eggs hatch at most level 20 (game master); raid catches are level 20 (players’ measurement) |
| 25 | 703 | 647 | 98 | raid catches in weather that boosts the boss’s type are level 25 (players’ measurement) |
| 30 | 843 | 777 | 107 | wild Pokémon are at most level 30 (game master) |
| 35 | 914 | 842 | 111 | |
| 40 | 984 | 906 | 116 | |
| 45 | 1,047 | 965 | 119 | |
| 50 | 1,112 | 1,025 | 123 | |
| 51 | 1,126 | 1,037 | 124 | best buddy bonus on a level 50 Pokémon |
Grubbin best moveset
Ranked by damage per second over one cycle of fast attacks and one charged attack. Assumptions: Grubbin at level 40 with 15/15/15, a target with 180 Defense taking neutral damage, no weather boost, and the energy Grubbin gains from being hit left out.
| Fast attack | Charged attack | Damage per second | |
|---|---|---|---|
| Bug Bite | X Scissor | 6.2 | |
| Spark | X Scissor | 6.2 | |
| Bug Bite | Crunch | 5.2 | |
| Spark | Crunch | 5.2 | |
| Bug Bite | Vice Grip | 4.4 |
Fast attacks
| Move | Type | Power | Energy | Time | Power / s | |
|---|---|---|---|---|---|---|
| Bug Bite | Bug | 5 | 6 | 0.5 s | 10.0 | same type, ×1.2 |
| Spark | Electric | 4 | 6 | 0.5 s | 8.0 |
Charged attacks
| Move | Type | Power | Energy cost | Time | Power / s | |
|---|---|---|---|---|---|---|
| Crunch | Dark | 65 | 33 | 3 s | 21.7 | |
| Vice Grip | Normal | 35 | 33 | 2 s | 17.5 | |
| X Scissor | Bug | 45 | 33 | 1.5 s | 30.0 | same type, ×1.2 |
Grubbin weaknesses and resistances
Damage multipliers for each attack type against Bug. Pokémon GO uses ×1.6 for super effective and ×0.625 for not very effective, multiplied for two types.
| Attack type | Damage |
|---|---|
| Fire | ×1.6 |
| Flying | ×1.6 |
| Rock | ×1.6 |
| Fighting | ×0.625 |
| Grass | ×0.625 |
| Ground | ×0.625 |
Grubbin CP calculator
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Sources: stats, moves, evolution costs and the CP multiplier for each level are from the Pokémon GO game master as published by PokeMiners (commit 8e227be, data of 28 August 2026). Which Pokémon are in the game: pogoapi.net (list of 31 January 2026). CP = ⌊(Attack+IV) × √(Defense+IV) × √(Stamina+IV) × CPM² / 10⌋, checked against pogoapi.net’s max CP table for 888 Pokémon. Raid catch levels and the 10/10/10 floor are players’ measurements; they are not in the game data. Pokémon and Pokémon GO are trademarks of their owners; this page is not affiliated with or endorsed by Niantic, Scopely, Nintendo, Creatures, GAME FREAK or The Pokémon Company.