TL;DR. Rillaboom is a pure grass-type Pokémon from Generation VIII. Base Stat Total: 530. By drumming, it taps into the power of its special tree stump. The roots of the stump follow its direction in battle.
By drumming, it taps into the power of its special tree stump. The roots of the stump follow its direction in battle.
Stat spread.
Total of 530. Higher peaks mean specialized roles, flat spreads favor versatility.
Rankings computed across all 1025 base-species Pokémon (Mega and Gigantamax forms excluded). Source: National Pokédex base stats.
Rillaboom in Pokémon GO.
Pokémon GO uses its own hand-tuned base stats, distinct from the main-series spread above. At a perfect 15/15/15, Rillaboom reaches 3,324 CP at level 40 and 3,803 CP as a best buddy.
Run the numbers: CP & HP calculator · PvP IV optimizer · Catch CP calculator
Shiny release
The first Shiny in the Grookey family appeared on January 18, 2026.
- Grookey
- Thwackey and Rillaboom by encounter
- Gigantamax Rillaboom
Rillaboom in competitive play.
Rillaboom is a Generation 9 OU-tier pick in Smogon singles. In Pokémon GO it ranks #36 in the Great League.
Build around it: GO PvP IV optimizer · Team builder · Ask Dia
Sets and GO ranks last checked 2026-10-20.
Common questions about Rillaboom.
Direct, sourced answers to the most-asked questions about Rillaboom, each computed straight from its Pokédex data.
What type is Rillaboom?
Rillaboom is a pure Grass-type Pokémon. It has a single typing, which means a simpler matchup chart but also fewer resistances.
What is Rillaboom weak to?
Rillaboom takes 2× damage from Fire, Ice, Poison, Flying, Bug. It has no 4× weaknesses.
What is Rillaboom resistant to?
Rillaboom resists Water, Grass, Electric, Ground. It has no full immunities.
How does Rillaboom evolve?
Rillaboom evolves from Thwackey (Level 35). Rillaboom evolves into Gigantamax Rillaboom (Gigantamax in Pokemon Sword / Shield (Dynamax level 10, battle-only)).
What generation is Rillaboom from?
Rillaboom was introduced in Generation VIII (the Galar region). Its Pokédex number is #0812.
What are Rillaboom's base stats?
Rillaboom has HP 100, Attack 125, Defense 90, Special Attack 60, Special Defense 70, and Speed 85. Total base stat total: 530.
What are Rillaboom's abilities?
Rillaboom can have the ability Overgrow, plus the Hidden Ability Grassy Surge.
Is Rillaboom legendary or mythical?
No. Rillaboom is a regular Pokémon, not classified as Legendary or Mythical.
What is Rillaboom's best stat?
Rillaboom's highest base stat is Attack at 125, which ranks 7th of 127 Grass-type Pokémon.
Is Rillaboom good?
Rillaboom has a base stat total of 530, the 163rd-highest of all 1025 Pokémon species and 14th among Grass-types. That is a strong, fully-evolved stat spread.
This Pokémon has forms.
Through the generations.
Rillaboom as drawn across two decades of Pokémon games, plus the modern Pokémon HOME render. Hit the cry button to hear it.
In battle.
Damage multipliers when Rillaboom is hit by each attacking type. 4× is two stacked weaknesses, ¼× is two stacked resistances.
Rillaboom vs. the average Grass-type.
Each base stat measured against the mean across all 127 Grass-type Pokémon.
| Stat | Rillaboom | Grass avg | Difference |
|---|---|---|---|
| HP | 100 | 66 | +34 |
| Attack | 125 | 75 | +50 |
| Defense | 90 | 72 | +18 |
| Special Attack | 60 | 72 | -12 |
| Special Defense | 70 | 72 | -2 |
| Speed | 85 | 60 | +25 |
| Total | 530 | 417 | +113 |
Rillaboom appears in 4 games.
Every mainline release where Rillaboom is obtainable, has a dex entry, or is transferable. Grouped by generation.
- 2019 Shield
- 2019 Sword
- 2023 Indigo Disk DLC
- 2016 Pokémon GO
How to get Rillaboom.
Every main-series game Rillaboom is in, newest first: how to get it, version exclusives and Shiny locks.
Generation IXObtainableNot in the game
- Scarlet · VioletObtainable
- Trade
- EventPoké Portal News
- EvolveThwackey (Level 35; The Indigo Disk)
- Legends: Z-ANot in the game
Generation VIIIObtainableNot in the game
- Sword · ShieldObtainable
- EvolveThwackey (Level 35)
- Brilliant Diamond · Shining Pearl · Legends: ArceusNot in the game
- Pokémon HOME
- Send it to HOME from Sword, Shield, Scarlet and Violet. From HOME it can move into Sword, Shield, Scarlet and Violet.
- Pokémon Champions
- Legal in Regulation M-C. It can be brought in from HOME.
Rillaboom appears in 4 episodes.
From JN099 (2022-02-25) through HZ152 (2026-10-09).
Pokémon Masters EX · Sync Pairs
Rillaboom partners with 2 trainers in Masters EX.
Each card is a canon Trainer + Rillaboom partnership. Tap any pair to open the Sync Pair catalog and explore the full roster.
TCG Pocket appearances
Rillaboom in TCG Pocket.
Every printed variant on iOS / Android. Tap any card for full art.
Pokémon like Rillaboom
Closest matches by typing, role, stats, and lore, from the same semantic search that powers the Reverse Dex.