#423

GastrodonWest

The Sea Slug Pokémon

It appears on shallow-water beaches to eat sand for nourishment. Should one Gastrodon encounter another of a different color, a fierce battle will ensue.

Base stat total: 475
Height: 0.9 m
Weight: 29.9 kg
Catch rate: 75

Base stats

475 total

HP 111 363 426

Atk 83 181 291

Def 68 154 258

SpA 92 198 311

SpD 82 180 289

Spe 39 102 194

At level 100, from no EVs and a hindering nature to 252 EVs and a beneficial one. Every Pokémon here has perfect IVs, so they are not part of the spread — except Speed, which the Iron Pill can drop to zero.

Type matchups

defending

Types onlyWith Storm Drain

Takes more

Grass 4×

Takes less

Poison ½× Rock ½× Steel ½× Fire ½×

No effect

Electric 0×

The other 12 types deal normal damage. Full chart

Takes more

Grass 4×

Takes less

Poison ½× Rock ½× Steel ½× Fire ½×

No effect

Water 0× Electric 0×

The other 11 types deal normal damage. Full chart

Storm Drain if chosen blocks Water

Abilities

3 selectable · 3 innate

Main choose one, switch any time Sand Force Powers up in a sandstorm. Storm Drain Draws in Water moves. Regenerator Heals upon switching out.

Innate always active, all of them Sticky Hold Prevents item theft. Self Sufficient Recovers 1/16 of max HP at the end of each turn. Shell Armor Blocks critical hits and reduces damage by 20%.

Evolution line

Shellos West BST 325

Gastrodon West BST 475 Level · 30

Changed from vanilla

Main abilities kept Storm Drain Sand Force new Regenerator now innate Sticky Hold

Innates added Self Sufficient Shell Armor

Details

Height: 0.9 m
Weight: 29.9 kg
Gender: 50% male · 50% female
Egg groups: Water 1, Amorphous
Egg cycles: 20
Catch rate: 75
Base exp: 166
Growth rate: Medium Fast
EV yield: 2 HP
Base friendship: 50
Wild held item: —
Colour: Purple

Moves

10 level-up · 0 egg · 0 teachable

Lv	Move	Type	Cat	Pwr	Acc	PP
1	Mud-Slap	Ground	Special	20	100	10
	Mud Sport	Ground	Status	—	∞	15
	Harden	Normal	Status	—	∞	30
	Water Pulse	Water	Special	80	100	20
2	Mud Sport	Ground	Status	—	∞	15
4	Harden	Normal	Status	—	∞	30
7	Water Pulse	Water	Special	80	100	20
11	Mud Bomb	Ground	Special	70	100	10
16	Hidden Power	Normal	Special	60	100	15
22	Rain Dance	Water	Status	—	∞	5
29	Body Slam	Normal	Physical	85	100	15
41	Muddy Water	Water	Special	90	85	10
54	Recover	Normal	Status	—	∞	5

No egg moves.

No teachable moves.

Where to find it

Not in any wild encounter table. Evolve Shellos instead.