17highest level
Sailor Duncan fields 3 Pokémon at level 17 in S.S. Anne B1F Room 4.
This is around Cascade Badge — Vermilion City — Lv. 25 cap in the story — that page lists everything you can have caught by this point.
Types on this team: Water ×3Poison
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Horsea Lv 17 Water | Ability Swift Swim | Bubble Smokescreen Leer Water Gun | HP30Attack40Defense70Sp. Atk70Sp. Def25Speed60Total295 |
 | Shellder Lv 17 Water | Ability Shell Armor | Tackle Withdraw Supersonic Aurora Beam | HP35Attack65Defense100Sp. Atk45Sp. Def25Speed40Total310 |
 | Tentacool Lv 17 WaterPoison | Ability Clear Body | Supersonic Constrict Whirlpool Acid | HP40Attack40Defense35Sp. Atk50Sp. Def100Speed70Total335 |
How to beat this team
Shared weaknesses. Electric hits 3 of 3, Grass hits 2 of 3, Ground hits 1 of 3, Psychic hits 1 of 3.
Level to be ready for. Lv 17 — Horsea, the highest on the team.
Electric Pokémon you can have caught by this point. From this guide’s own encounter tables, by Cascade Badge — Vermilion City — Lv. 25 cap: