Pokédex ／ Water ／ #422 Shellos
#422
Shellos
WATER TYPE · STRONYM REGION

Shellos

The Sea Slug Pokémon
Water
HEIGHT0.3 m
WEIGHT6.3 kg
BASE EXP65
ORIGINNational Dex
ABILITY Sticky HoldHIDDEN: Sand Force

Protects the Pokémon from item theft.

POKéDEX ENTRY

Its colors and shapes differ from region to region. In the Sinnoh region, two types are confirmed.

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Gastrodon
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Base Stats

BST 325
HP 76 ATK 48 DEF 48 SPE 34 SP.D 62 SP.A 57
HP76
ATK48
DEF48
SP.A57
SP.D62
SPE34
Base Stat Total325
▲ WEAKNESSES
Grass×2Electric×2Void×2
▼ RESISTANCES
Steel×½Fire×½Water×½Ice×½

Evolution Line

Shellos
#422ShellosWater
LV 30
Gastrodon
#423GastrodonWaterGround

Level-Up Moves

10 MOVES
Lv 1 Mud-Slap Ground
◆Special 20PWR 100ACC 7PP
Lv 2 Mud Sport Ground
○Status —PWR —ACC 12PP
Lv 4 Harden Normal
○Status —PWR —ACC 12PP
Lv 7 Water Pulse Water
◆Special 60PWR 100ACC 12PP
Lv 11 Mud Bomb Ground
◆Special 65PWR 85ACC 10PP
Lv 16 Hidden Power Normal
◆Special 1PWR 100ACC 12PP
Lv 22 Rain Dance Water
○Status —PWR —ACC 5PP
Lv 29 Body Slam Normal
●Physical 85PWR 100ACC 12PP
Lv 37 Muddy Water Water
◆Special 95PWR 85ACC 7PP
Lv 46 Recover Normal
○Status —PWR —ACC 7PP
DATAMINED
DATA SOURCEGame files · v1.9
METHODRGSSAD unpack
LAST VERIFIED2026-06
KNOWN LIMITSMove PP and item prices are RFG-rebalanced and differ from mainline values.