29level cap
Jessie & James fields 3 Pokémon between level 28 and level 29 in Rocket Hideout.
This is around Got HM01 Cut — S.S. Anne in the story — that page lists everything you can have caught by this point.
Types on this team: Poison ×2Normal
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Koffing Lv 28 Poison | Tackle Smog Acid Smokescreen | HP40Attack65Defense95Sp. Atk60Sp. Def60Speed35Total355 | |
 | Meowth Lv 29 Normal | Bite Pay Day Screech Take Down | HP40Attack45Defense35Sp. Atk40Sp. Def40Speed90Total290 | |
 | Arbok Lv 28 Poison | Bite Acid Substitute Glare | HP62Attack95Defense69Sp. Atk65Sp. Def65Speed90Total446 |
How to beat this team
Shared weaknesses. Ground hits 2 of 3, Psychic hits 2 of 3, Fighting hits 1 of 3.
Level to be ready for. Lv 29 — Meowth, the highest on the team.
Ground Pokémon you can have caught by this point. From this guide’s own encounter tables, by Got HM01 Cut — S.S. Anne: