Gastrodon #342(Nat. #0423)

West Sea Gastrodon

The Sea Slug Pokémon

Forms:

Typing	WaterGround
Abilities	Sticky Hold - Ability 1 Storm Drain - Ability 2 Sand Force - Hidden
Classification	The Sea Slug Pokémon
National ID	#0423
Regional ID	#0342

Type Effectiveness

Weak x4

Grass

Resists x½

PoisonRockSteelFire

Immune x0

Electric

View all Typings:

Sprite and Official Artwork

Gastrodon West Sea (gastrodon) game sprite

Base Stats

Stat	Amount	Stat Range
HP	111	171—218
Attack	83	79—148
Defense	68	65—132
Sp. Attack	92	87—158
Sp. Defense	82	78—147
Speed	39	39—100
Total	475	Calculated Stat Range

Calculated stats: Lv. 50

Lv. 100Nature details:

Evolutionary Family

At Level 30

Breeding and Species Information

Egg Group(s)	Water 1 Amorphous
Egg Cycles	20
Egg Steps	5120
Gender Ratio	50.00% 50.00%
Height	0.9 m (2'11")
Weight	29.9 kg (65.9 lbs.)

Battle Information

EV Yield	2 HP
Base Exp. Yield	166
Catch Rate	75
Catch Chance	~17.52% Success (Poké Ball, Lvl. 50, Full HP)
Exp. Growth Rate	Medium Fast
Base Friendship	50

Pokédex Entries

Ultra Sun

"Long ago, it had a shell on its back. There’s now a vestigial plate on its back that’s hard but thin."

Ultra Moon

"Their shape and color change, depending on their environment and diet. There are many of them at beaches where the waves are calm."

Learnset

Level-up Egg Tutor TM Transfer

Learnset via Level-up

The following moves are learned by West Sea Gastrodon via level-up in Pokémon Ultra Sun and Ultra Moon:

Level	Name	Power	Acc.	Type	Cat.
1	Harden	—	—	Normal	Stat.
1	Mud Sport	—	—	Ground	Stat.
1	Mud-Slap	20	100	Ground	Spec.
1	Water Pulse	60	100	Water	Spec.
2	Mud Sport	—	—	Ground	Stat.
4	Harden	—	—	Normal	Stat.
7	Water Pulse	60	100	Water	Spec.
11	Mud Bomb	65	85	Ground	Spec.
16	Hidden Power	60	100	Normal	Spec.
22	Rain Dance	—	—	Water	Stat.
29	Body Slam	85	100	Normal	Phys.
41	Muddy Water	90	85	Water	Spec.
54	Recover	—	—	Normal	Stat.

Egg Moves

The following moves are learned by West Sea Gastrodon as Egg Moves in Pokémon Ultra Sun and Ultra Moon:

Name	Power	Acc.	Type	Cat.
Acid Armor	—	—	Poison	Stat.
Amnesia	—	—	Psychic	Stat.
Brine	65	100	Water	Spec.
Clear Smog	50	—	Poison	Spec.
Counter	1	100	Fighting	Phys.
Curse	—	—	Ghost	Stat.
Fissure	1	30	Ground	Phys.
Memento	—	100	Dark	Stat.
Mirror Coat	1	100	Psychic	Spec.
Mist	—	—	Ice	Stat.
Sludge	65	100	Poison	Spec.
Spit Up	1	100	Normal	Spec.
Stockpile	—	—	Normal	Stat.
Swallow	—	—	Normal	Stat.
Trump Card	1	—	Normal	Spec.
Yawn	—	—	Normal	Stat.

Tutor Moves

The following moves are learned by West Sea Gastrodon as Tutor Moves in Pokémon Ultra Sun and Ultra Moon:

Name	Power	Acc.	Type	Cat.
Block	—	—	Normal	Stat.
Earth Power	90	100	Ground	Spec.
Icy Wind	55	95	Ice	Spec.
Pain Split	—	—	Normal	Stat.
Snore	50	100	Normal	Spec.
Stomping Tantrum	75	100	Ground	Phys.
Water Pulse	60	100	Water	Spec.

Tutor moves can only be learned by visiting a special Move Tutor.

Learnset via TM

The following moves are learned by West Sea Gastrodon via TM in Pokémon Ultra Sun and Ultra Moon:

TM	Name	Power	Acc.	Type	Cat.
TM006	Toxic	—	90	Poison	Stat.
TM007	Hail	—	—	Ice	Stat.
TM010	Hidden Power	60	100	Normal	Spec.
TM013	Ice Beam	90	100	Ice	Spec.
TM014	Blizzard	110	70	Ice	Spec.
TM015	Hyper Beam	150	90	Normal	Spec.
TM017	Protect	—	—	Normal	Stat.
TM018	Rain Dance	—	—	Water	Stat.
TM021	Frustration	1	100	Normal	Phys.
TM026	Earthquake	100	100	Ground	Phys.
TM027	Return	1	100	Normal	Phys.
TM032	Double Team	—	—	Normal	Stat.
TM034	Sludge Wave	95	100	Poison	Spec.
TM036	Sludge Bomb	90	100	Poison	Spec.
TM037	Sandstorm	—	—	Rock	Stat.
TM039	Rock Tomb	60	95	Rock	Phys.
TM042	Facade	70	100	Normal	Phys.
TM044	Rest	—	—	Psychic	Stat.
TM045	Attract	—	100	Normal	Stat.
TM048	Round	60	100	Normal	Spec.
TM055	Scald	80	100	Water	Spec.
TM068	Giga Impact	150	90	Normal	Phys.
TM071	Stone Edge	100	80	Rock	Phys.
TM078	Bulldoze	60	100	Ground	Phys.
TM080	Rock Slide	75	90	Rock	Phys.
TM083	Infestation	20	100	Bug	Spec.
TM087	Swagger	—	85	Normal	Stat.
TM088	Sleep Talk	—	—	Normal	Stat.
TM090	Substitute	—	—	Normal	Stat.
TM094	Surf	90	100	Water	Spec.
TM098	Waterfall	80	100	Water	Phys.
TM100	Confide	—	—	Normal	Stat.

Transfer Moves

The following moves are learned by West Sea Gastrodon via Transfer from an older game:

Name	Origin Games	Power	Acc.	Type	Cat.
Ancient Power	HGSS Pt	60	100	Rock	Spec.
Captivate	DP HGSS Pt	—	100	Normal	Stat.
Dig	DP HGSS Pt B2W2 ORAS XY	80	100	Ground	Phys.
Dive	HGSS Pt B2W2 ORAS	80	100	Water	Phys.
Endure	DP HGSS Pt	—	—	Normal	Stat.
Flash	DP HGSS Pt B2W2 ORAS XY	—	100	Normal	Stat.
Headbutt	HGSS	70	100	Normal	Phys.
Natural Gift	DP HGSS Pt	1	100	Normal	Phys.
Rock Smash	DP HGSS Pt B2W2 ORAS XY	40	100	Fighting	Phys.
Secret Power	DP HGSS Pt B2W2 ORAS	70	100	Normal	Phys.
Strength	DP HGSS Pt B2W2 ORAS XY	80	100	Normal	Phys.
String Shot	HGSS	—	95	Bug	Stat.
Whirlpool	HGSS	35	85	Water	Spec.

Transfer moves require transferring the Pokémon from a previous generation where it could learn the move.

In-Game Images

Standard Sprites

Main Sprite

Shiny Sprites

Main Sprite

Shellos(#0422)

Relicanth(#0369)

Legends: Z-A

Scarlet and Violet

Other Games

Catch Calculators

Shiny Rates

Shiny Hunting Tools