Sea Slug Pokémon
Subjecting this Pokémon to a strong force causes it to secrete a strange purple fluid. Though harmless, the fluid is awfully sticky.
Prevents a held item from being removed by other Pokémon.
Redirects single-target Water moves to this Pokémon where possible. Absorbs Water moves, raising Special Attack one stage.
Strengthens Rock, Ground, and Steel moves to 1.3× their power during a sandstorm. Protects against sandstorm damage.
has a 35.2% capture chance
has a 47.7% capture chance
has a 59.2% capture chance
Calculation for the most recent games, assuming the Pokémon has 100% HP, no status condition, and no critical capture.
Forms only affect appearance. A form is determined before a wild encounter based on whether the battle is in western or eastern Sinnoh, or inherited from the mother when breeding, and cannot be changed.
Official names and readings used across the games' different localizations.
See only information that changed between generations and mechanics from classic games.
This Pokémon’s habitat shapes its physique. According to some theories, life in warm ocean waters causes this variation to develop.
These Pokémon share the same egg group and can breed with the selected one:
Values calculated for the most recent games. The minimum assumes 0 IVs, 0 EVs, and a hindering Nature; the maximum assumes 31 IVs, 252 EVs, and a beneficial Nature. HP is not affected by Nature. The EVs column shows the species' EV yield.
Damage dealt by West Shellos’s Types against each opposing Type.
Deals increased damage.
Deals reduced damage.
Does not deal damage.
No Types in this relation.
Damage received by West Shellos based on its combination of Types.
Receives increased damage.
Receives reduced damage.
Receives no damage.
No Types in this relation.
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Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
Each condition below applies only to the versions shown alongside it.
