SwSh / Pokédex

Rillaboom Gmax

Back to Pokédex

Rillaboom Gigantamax in Pokémon Sword & Shield

Gigantamax is a battle transformation available to a Pokémon with the Gigantamax Factor, rather than a separate catchable species. The learnset below describes its underlying Pokémon before transforming; G-Max moves replace eligible moves during battle.

Pokédex entries

Sword

By drumming, it taps into the power of its special tree stump. The roots of the stump follow its direction in battle.

Shield

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

Pokémon details

Type

Grass

Category

Drummer Pokémon

Height

28 m (91'10") minimum

Weight

Unknown

National Pokédex

#0812

Pokédex

Galar #3

Rillaboom Gigantamax in Other Games

National Dex page

Base stat spread shown as a hex chart and supporting stat bars.

Min

Max

HP

100

310

404

Attack

125

229

383

Defense

90

166

306

Sp. Atk

60

112

240

Sp. Def

70

130

262

Speed

85

157

295

Total

530

Ranges are for Level 100. Max assumes a beneficial nature, 252 EVs, and 31 IVs; min assumes a hindering nature, 0 EVs, and 0 IVs.

Type-only matchups for Rillaboom Gigantamax, sorted from worst weakness to best resistance. Abilities, held items and battle conditions can change the damage taken.

EV yield, catch rate, and experience details for this Pokémon.
Pokédexes
Galar #3
EV yield
3 Atk
Catch rate
45
Base Exp.
265

Egg groups, gender ratio, and hatching details for this Pokémon.
Egg groups
Gender
87.5% male
12.5% female
Egg cycles
Temporary form does not hatch from Eggs

Evolution requirements shown in a compact table or chain view.

Listed levels describe learning by leveling up. The Move Reminder can also teach available level-up moves regardless of the current level.
Class
Evo.Drum Beating

The user plays its drum, controlling the drum’s roots to attack the target. This also lowers the target’s Speed stat.

Grass8010010
StartScratch

Hard, pointed, sharp claws rake the target to inflict damage.

Normal4010035
StartGrowl

The user growls in an endearing way, making opposing Pokémon less wary. This lowers their Attack stats.

Normal-10040
StartTaunt

The target is taunted into a rage that allows it to use only attack moves for three turns.

Dark-10020
StartDouble Hit

The user slams the target with a long tail, vines, or a tentacle. The target is hit twice in a row.

Normal359010
StartNoble Roar

Letting out a noble roar, the user intimidates the target and lowers its Attack and Sp. Atk stats.

Normal-10030
StartGrassy Terrain

The user turns the ground to grass for five turns. This restores the HP of Pokémon on the ground a little every turn and powers up Grass-type moves.

Grass--10
StartDrum Beating

The user plays its drum, controlling the drum’s roots to attack the target. This also lowers the target’s Speed stat.

Grass8010010
StartBranch Poke

The user attacks the target by poking it with a sharply pointed branch.

Grass4010040
12Razor Leaf

Sharp-edged leaves are launched to slash at opposing Pokémon. Critical hits land more easily.

Grass559525
19Screech

An earsplitting screech harshly lowers the target’s Defense stat.

Normal-8540
24Knock Off

The user slaps down the target’s held item, and that item can’t be used in that battle. The move does more damage if the target has a held item.

Dark6510020
30Slam

The target is slammed with a long tail, vines, or the like to inflict damage.

Normal807520
38Uproar

The user attacks in an uproar for three turns. During that time, no Pokémon can fall asleep.

Normal9010010
46Wood Hammer

The user slams its rugged body into the target to attack. This also damages the user quite a lot.

Grass12010015
54Endeavor

This attack move cuts down the target’s HP to equal the user’s HP.

Normal-1005
62Boomburst

The user attacks everything around it with the destructive power of a terrible, explosive sound.

Normal14010010

Moves this Pokémon can learn from Technical Machines and Technical Records in Pokémon Sword and Shield.
Class
TM00Mega Punch

The target is slugged by a punch thrown with muscle-packed power.

Normal808520
TM01Mega Kick

The target is attacked by a kick launched with muscle-packed power.

Normal120755
TM08Hyper Beam

The target is attacked with a powerful beam. The user can’t move on the next turn.

Normal150905
TM09Giga Impact

The user charges at the target using every bit of its power. The user can’t move on the next turn.

Normal150905
TM10Magical Leaf

The user scatters curious leaves that chase the target. This attack never misses.

Grass60-20
TM11Solar Beam

In this two-turn attack, the user gathers light, then blasts a bundled beam on the next turn.

Grass12010010
TM12Solar Blade

In this two-turn attack, the user gathers light and fills a blade with the light’s energy, attacking the target on the next turn.

Grass12510010
TM16Screech

An earsplitting screech harshly lowers the target’s Defense stat.

Normal-8540
TM21Rest

The user goes to sleep for two turns. This fully restores the user’s HP and heals any status conditions.

Psychic--10
TM24Snore

This attack can be used only if the user is asleep. The harsh noise may also make the target flinch.

Normal5010015
TM25Protect

This move enables the user to protect itself from all attacks. Its chance of failing rises if it is used in succession.

Normal--10
TM26Scary Face

The user frightens the target with a scary face to harshly lower its Speed stat.

Normal-10010
TM28Giga Drain

A nutrient-draining attack. The user’s HP is restored by half the damage taken by the target.

Grass7510010
TM31Attract

If it is the opposite gender of the user, the target becomes infatuated and less likely to attack.

Normal-10015
TM34Sunny Day

The user intensifies the sun for five turns, powering up Fire-type moves. It lowers the power of Water-type moves.

Fire--5
TM39Facade

This attack move doubles its power if the user is poisoned, burned, or paralyzed.

Normal7010020
TM40Swift

Star-shaped rays are shot at opposing Pokémon. This attack never misses.

Normal60-20
TM43Brick Break

The user attacks with a swift chop. It can also break barriers, such as Light Screen and Reflect.

Fighting7510015
TM50Bullet Seed

The user forcefully shoots seeds at the target two to five times in a row.

Grass2510030
TM53Mud Shot

The user attacks by hurling a blob of mud at the target. This also lowers the target’s Speed stat.

Ground559515
TM56U-turn

After making its attack, the user rushes back to switch places with a party Pokémon in waiting.

Bug7010020
TM58Assurance

If the target has already taken some damage in the same turn, this attack’s power is doubled.

Dark6010010
TM59Fling

The user flings its held item at the target to attack. This move’s power and effects depend on the item.

Dark-10010
TM63Drain Punch

An energy-draining punch. The user’s HP is restored by half the damage taken by the target.

Fighting7510010
TM76Round

The user attacks the target with a song. Others can join in the Round to increase the power of the attack.

Normal6010015
TM78Acrobatics

The user nimbly strikes the target. If the user is not holding an item, this attack inflicts massive damage.

Flying5510015
TM81Bulldoze

The user strikes everything around it by stomping down on the ground. This lowers the Speed stats of those hit.

Ground6010020
TM85Snarl

The user yells as if it’s ranting about something, which lowers the Sp. Atk stats of opposing Pokémon.

Dark559515
TM88Grassy Terrain

The user turns the ground to grass for five turns. This restores the HP of Pokémon on the ground a little every turn and powers up Grass-type moves.

Grass--10
TM94False Swipe

A restrained attack that prevents the target from fainting. The target is left with at least 1 HP.

Normal4010040
TM97Brutal Swing

The user swings its body around violently to inflict damage on everything in its vicinity.

Dark6010020
TM98Stomping Tantrum

Driven by frustration, the user attacks the target. If the user’s previous move has failed, the power of this move doubles.

Ground7510010
TR00Swords Dance

A frenetic dance to uplift the fighting spirit. This sharply raises the user’s Attack stat.

Normal--20
TR01Body Slam

The user drops onto the target with its full body weight. This may also leave the target with paralysis.

Normal8510015
TR07Low Kick

A powerful low kick that makes the target fall over. The heavier the target, the greater the move’s power.

Fighting-10020
TR10Earthquake

The user sets off an earthquake that strikes every Pokémon around it.

Ground10010010
TR13Focus Energy

The user takes a deep breath and focuses so that critical hits land more easily.

Normal--30
TR20Substitute

The user creates a substitute for itself using some of its HP. The substitute serves as the user’s decoy.

Normal--10
TR26Endure

The user endures any attack with at least 1 HP. Its chance of failing rises if it is used in succession.

Normal--10
TR27Sleep Talk

While it is asleep, the user randomly uses one of the moves it knows.

Normal--10
TR35Uproar

The user attacks in an uproar for three turns. During that time, no Pokémon can fall asleep.

Normal9010010
TR37Taunt

The target is taunted into a rage that allows it to use only attack moves for three turns.

Dark-10020
TR39Superpower

The user attacks the target with great power. However, this also lowers the user’s Attack and Defense stats.

Fighting1201005
TR42Hyper Voice

The user lets loose a horribly echoing shout with the power to inflict damage.

Normal9010010
TR48Bulk Up

The user tenses its muscles to bulk up its body, raising both its Attack and Defense stats.

Fighting--20
TR64Focus Blast

The user heightens its mental focus and unleashes its power. This may also lower the target’s Sp. Def stat.

Fighting120705
TR65Energy Ball

The user draws power from nature and fires it at the target. This may also lower the target’s Sp. Def stat.

Grass9010010
TR67Earth Power

The user makes the ground under the target erupt with power. This may also lower the target’s Sp. Def stat.

Ground9010010
TR71Leaf Storm

The user whips up a storm of leaves around the target. The attack’s recoil harshly lowers the user’s Sp. Atk stat.

Grass130905
TR77Grass Knot

The user snares the target with grass and trips it. The heavier the target, the greater the move’s power.

Grass-10020
TR85Work Up

The user is roused, and its Attack and Sp. Atk stats increase.

Normal--30
TR93Darkest Lariat

The user swings both arms and hits the target. The target’s stat changes don’t affect this attack’s damage.

Dark8510010
TR94High Horsepower

The user fiercely attacks the target using its entire body.

Ground959510
TR99Body Press

The user attacks by slamming its body into the target. The higher the user’s Defense, the more damage it can inflict on the target.

Fighting8010010

Moves this Pokémon can learn from move tutors in this game.
Class
Frenzy Plant

The user slams the target with the roots of an enormous tree. The user can’t move on the next turn.

Grass150905
Grass Pledge

A column of grass hits the target. When used with its water equivalent, its power increases and a vast swamp appears.

Grass8010010
Grassy Glide

Gliding on the ground, the user attacks the target. This move always goes first on Grassy Terrain.

Grass7010020

Individual options, not a guarantee that every four-move combination is legal or eligible for Ranked Battles. Imports require the indicated transfer path; later games use separate HOME movesets.
Class
Fake Out

This attack hits first and makes the target flinch. It only works the first turn each time the user enters battle.

Nursery sharing: leave two Pokémon of the same species together, with an empty move slot on the recipient.

Normal4010010
Fake Out

This attack hits first and makes the target flinch. It only works the first turn each time the user enters battle.

Learn as Grookey, then retain through evolution.

Normal4010010
Growth

The user’s body grows all at once, raising the Attack and Sp. Atk stats.

Nursery sharing: leave two Pokémon of the same species together, with an empty move slot on the recipient.

Normal--20
Growth

The user’s body grows all at once, raising the Attack and Sp. Atk stats.

Learn as Grookey, then retain through evolution.

Normal--20
Hammer Arm

The user swings and hits with its strong, heavy fist. It lowers the user’s Speed, however.

Nursery sharing: leave two Pokémon of the same species together, with an empty move slot on the recipient.

Fighting1009010
Hammer Arm

The user swings and hits with its strong, heavy fist. It lowers the user’s Speed, however.

Learn as Grookey, then retain through evolution.

Fighting1009010
Leech Seed

A seed is planted on the target. It steals some HP from the target every turn.

Nursery sharing: leave two Pokémon of the same species together, with an empty move slot on the recipient.

Grass-9010
Leech Seed

A seed is planted on the target. It steals some HP from the target every turn.

Learn as Grookey, then retain through evolution.

Grass-9010
Nature Power

This attack makes use of nature’s power. Its effects vary depending on the user’s environment.

Nursery sharing: leave two Pokémon of the same species together, with an empty move slot on the recipient.

Normal--20
Nature Power

This attack makes use of nature’s power. Its effects vary depending on the user’s environment.

Learn as Grookey, then retain through evolution.

Normal--20
Strength

The target is slugged with a punch thrown at maximum power.

Nursery sharing: leave two Pokémon of the same species together, with an empty move slot on the recipient.

Normal8010015
Strength

The target is slugged with a punch thrown at maximum power.

Learn as Grookey, then retain through evolution.

Normal8010015
Worry Seed

A seed that causes worry is planted on the target. It prevents sleep by making the target’s Ability Insomnia.

Nursery sharing: leave two Pokémon of the same species together, with an empty move slot on the recipient.

Grass-10010
Worry Seed

A seed that causes worry is planted on the target. It prevents sleep by making the target’s Ability Insomnia.

Learn as Grookey, then retain through evolution.

Grass-10010

Ability options available to this Pokémon in this game.

Overgrow

Ability Slot 1

Powers up Grass-type moves when the Pokémon’s HP is low.

Strengthens Grass moves to inflict 1.5× damage at 1/3 max HP or less.

Grassy Surge(Hidden Ability)

Turns the ground into Grassy Terrain when the Pokémon enters a battle.

When this Pokémon enters battle, it changes the terrain to Grassy Terrain.

Join Discord

Join a community of 5,000+ Trainers.

discord.gg/dittobase