21level cap
Misty fields 3 Pokémon between level 18 and level 21 in Cerulean City Gym.
This is around Beat Misty — Cerulean City Gym, badge 2 in the story — that page lists everything you can have caught by this point.
Types on this team: Water ×3Psychic
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Psyduck Lv 19 Water | Scratch Disable Confusion Bubblebeam | HP50Attack52Defense48Sp. Atk50Sp. Def50Speed55Total305 | |
 | Goldeen Lv 18 Water | Tail Whip Water Gun Horn Attack Waterfall | HP45Attack67Defense60Sp. Atk50Sp. Def50Speed63Total335 | |
 | Starmie Lv 21 WaterPsychic | Confusion Swift Bubblebeam | HP60Attack75Defense85Sp. Atk100Sp. Def100Speed115Total535 |
How to beat this team
Shared weaknesses. Electric hits 3 of 3, Grass hits 3 of 3, Bug hits 1 of 3, Dark hits 1 of 3.
Level to be ready for. Lv 21 — Starmie, the highest on the team.
Electric Pokémon you can have caught by this point. From this guide’s own encounter tables, by Beat Misty — Cerulean City Gym, badge 2: