National Pokédex #422 · Generation 4
Shellos is National Pokédex #422, a Water-type standard species associated with Sinnoh and Generation 4. It is released in Pokémon GO. Its recorded evolution routes lead to Gastrodon.
At a glance
These facts combine DexJourney's National Pokédex, Pokémon GO metadata, release, form and costume catalogs.
Evolution Journey
Direct incoming and outgoing evolution routes are shown with every Candy, item, buddy, time, gender, trade or task requirement recorded by DexJourney.
Evolution requirements reviewed July 10, 2026.
Acquisition
Shellos is released, but DexJourney does not currently record one permanent acquisition method. Availability can rotate through wild encounters, raids, Eggs, research, events, regional access or trades.
Check the current in-game Today view and official Pokémon GO announcements before planning a hunt.
Live schedule
Snapshot checked 2026-10-25. This guide does not establish a current raid or Spotlight appearance. Wild, Egg, research and other access may differ; use the acquisition steps and dated official announcements.
Browse all events, research and regional opportunities → · Plan a hunt →
Form Dex
Costume Dex
No separate costumes entries are recorded for this species in the catalog reviewed 2026-07-17.
Costume entries are historical released appearances, not a promise of current availability.
Search like Pokémon GO
Paste these into DexJourney Collection search. Combine terms with &, use | for alternatives, or add ! to exclude a term.
shellos#422+shellosmissing&released&shellosshiny&shelloswaterPvP & raids
Compare a dedicated recommendation for every permanent GO Battle League and a separate raid-attacking set.
Battle sources checked recently
Sources checked October 25, 2026; PvPoke source updated 2026-10-21 03:50:13. Recommendations use the last validated snapshot.
1,500 CP
Shellos
Overall open-league recommendation for Shellos.
2,500 CP
Shellos
Shellos is not ranked in the current open-league simulation; this fallback favors energy generation, damage efficiency and coverage.
No CP limit
Shellos
Shellos is not ranked in the current open-league simulation; this fallback favors energy generation, damage efficiency and coverage.
Ground-type attacker
Shellos · source does not identify a form; verify its moves before investing
Use this as a starting point for Shellos. The actual best raid set depends on the boss's weaknesses, weather, Party Power and available forms.
PvP sets are open-league starting points, not guarantees for every team or matchup. Ranked sets come from PvPoke simulations; unranked Pokémon receive a clearly labeled DexJourney estimate. The raid set is a neutral same-type cycle estimate rather than a boss-specific counter ranking.
Review current PvPoke rankings ↗ · Pokémon GO Game Master source ↗
Battle sources checked October 25, 2026. Recommendations use the last validated source check; moves can change between checks. Raid sets are estimates, not boss-specific simulations.
Compare the best Pokémon by PvP league and raid type →
This species-level move-name list supports collection search, not a claim that every form can learn every move. Use the named form on each recommendation and verify unscoped sets before investing. Moves marked Elite TM / legacy may require an Elite TM or a limited event.