#0812

Rillaboom

Drummer Pokémon

grass

The one with the best drumming techniques becomes the boss of the troop. It has a gentle disposition and values harmony among its group.

Base stats

HP 100

Attack 125

Defense 90

Sp. Attack 60

Sp. Defense 70

Speed 85

Total 530

Type matchups

Worked out for the full Grass combination, so dual-type multipliers are already applied.

Takes 2x from fire ice poison flying bug

Resists (0.5x) water electric grass ground

Evolution line

Grookey

Lv 16

Thwackey

Lv 35

Rillaboom

Details

Abilities	Overgrow, Grassy Surge (hidden)
Height	2.1 m
Weight	90 kg
Catch rate	45 (higher is easier)
Growth rate	medium slow
Egg groups	ground, plant
Generation	VIII

Catching Rillaboom in Cobblemon

Rillaboom has a catch rate of 45, which is tricky by Cobblemon standards. Bring its HP as low as you can without knocking it out, ideally with False Swipe, then apply sleep or paralysis before throwing. Those two things matter far more than which ball you use.

Where it appears depends on biome, time of day and weather. Our spawn biome guide explains how to steer the spawn pool toward what you are hunting.

Shiny odds are the same for every species, roughly 1 in 8,192 per spawn, so hunting a shiny Rillaboom is purely a volume game. See shiny hunting.

Where Rillaboom spawns

Read from the Cobblemon 1.7.3 data files. 1 spawn entry. Servers can and do edit these.

Ultra rare Level 35-53 On land

Jungle Tropical island

Sky light level 8 to 15

The rarest spawn tier in the game. Most people get one by trading or breeding instead.

Rillaboom FAQ

What type is Rillaboom in Cobblemon?

Rillaboom is a Grass-type Pokemon, number 812 in the Cobblemon Pokedex. Cobblemon uses the same typing as the main series games, so its matchups behave exactly as you would expect.

What is Rillaboom weak to?

Rillaboom takes extra damage from Fire, Ice, Poison, Flying and Bug moves.

Where does Rillaboom spawn in Cobblemon?

Rillaboom spawns as ultra rare in Jungle, Tropical island at level 35-53. Conditions that apply: sky light level 8 to 15. Spawn data is read straight from Cobblemon 1.7.3, so servers running spawn edits may differ.

How hard is Rillaboom to catch in Cobblemon?

Rillaboom has a catch rate of 45 out of 255, making it hard to catch. Lowering its HP into the red and applying sleep or paralysis moves the odds far more than upgrading your ball does, so bring a status move before you bring better balls.

What does Rillaboom evolve into?

Rillaboom is the final stage of its evolution line. The full line is grookey to thwackey to rillaboom.

What egg group is Rillaboom in?

Rillaboom belongs to the Field and Grass egg groups. It can breed with any Pokemon of the opposite gender that shares one of those groups, or with a Ditto.

What are Rillaboom's base stats?

Rillaboom has a base stat total of 530. Its highest stat is Attack at 125. Base stats are identical for every Rillaboom you catch; IVs, EVs and nature are what separate one from another.

What abilities can Rillaboom have?

Rillaboom can have Overgrow. Its hidden ability is Grassy Surge, which is much rarer and usually comes from breeding rather than a wild catch.