National Pokédex #423 · Generation 4
Gastrodon is National Pokédex #423, a Water/Ground-type standard species associated with Sinnoh and Generation 4. It is released in Pokémon GO. It has no outgoing evolution route recorded in DexJourney.
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
Gastrodon can be registered by evolving Shellos with the requirements below.
Availability outside evolution can rotate through events, research, raids, Eggs or trades. Verify current availability in Pokémon GO.
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.
gastrodon#423+gastrodonmissing&released&gastrodonshiny&gastrodonwaterPvP & raids
Compare a dedicated recommendation for every permanent GO Battle League and a separate raid-attacking set.
1,500 CP
Overall open-league recommendation for Gastrodon.
2,500 CP
Overall open-league recommendation for Gastrodon.
No CP limit
Gastrodon is not ranked in the current open-league simulation; this fallback favors energy generation, damage efficiency and coverage.
Ground-type attacker
Use this as a starting point for Gastrodon. 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 data reviewed July 21, 2026. Move balance can change after seasonal updates.
The complete move-name list supports collection search. Moves marked Elite TM / legacy may require an Elite TM or a limited event.