Generation 4 · Pokédex profile
Sea Weasel Pokémon
Pokédex entry
It inflates its flotation sac, keeping its face above water in order to watch for prey movement. It swims by rotating its two tails like a screw.
Battle data
Conditional evolutions can require additional game-specific prerequisites beyond the displayed method.
| Method | Location | Level | Evidence |
|---|---|---|---|
| Rare grass encounter | Route 118 | Lv. 24 | Source-indexed, not individually verified |
| Grass (rare) | Route 4 | Lv. 10 | Source-indexed, not individually verified |
Rare grass and Surfing encounters inherit the first native slot's level range. Supplemental fishing follows each rod's native slots. These ranges exclude Lure effects and randomizer replacements; eligibility restrictions still apply.
Data source: configured Grand Anthology Gen 1–9 species, forms and abilities. The website uses frame-cropped copies of the game's existing Pokémon sprites, which remain franchise/artist-owned assets. Some alternate forms use labeled default-form artwork when their individual sprite is unavailable. See acknowledgments for credits.