60highest level
Fought at Route 20.
This is around Marsh Badge — the sea routes and Cinnabar Island in the story — that page lists everything you can have caught by this point.
Types on this team: PoisonWater
| Pokémon | Moves | |
|---|---|---|
 | Tentacruel Lv 60 · Clear Body · Leftovers Postgame. Its level is set to match your lead Pokémon when the fight starts; the stored level is shown · Impish nature · EVs 252/252/4/0/0/0 | Swords Dance Substitute Hidden Power Barrier |