17highest level
Team Rocket Grunt (6) fields 5 Pokémon at level 17 in Rocket Hideout.
This is around Thunder Badge — Rock Tunnel to Celadon City in the story — that page lists everything you can have caught by this point.
Types on this team: Poison ×4Flying ×2Normal
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Zubat Lv 17 PoisonFlying | Bite Astonish Supersonic Leech Life | HP40Attack45Defense35Sp. Atk30Sp. Def40Speed55Total245 | |
 | Koffing Lv 17 Poison | Smog Tackle Poison Gas | HP40Attack65Defense95Sp. Atk60Sp. Def45Speed35Total340 | |
 | Grimer Lv 17 Poison | Sludge Disable Harden Pound | HP80Attack80Defense50Sp. Atk40Sp. Def50Speed25Total325 | |
| Zubat Lv 17 PoisonFlying | Bite Astonish Supersonic Leech Life | HP40Attack45Defense35Sp. Atk30Sp. Def40Speed55Total245 | |
 | Raticate Lv 17 Normal | Hyper Fang Quick Attack Tail Whip Tackle | HP55Attack81Defense60Sp. Atk50Sp. Def70Speed97Total413 |
How to beat this team
Shared weaknesses. Psychic hits 4 of 5, Electric hits 2 of 5, Ground hits 2 of 5, Ice hits 2 of 5.
Level to be ready for. Lv 17 — Zubat, the highest on the team.
Psychic Pokémon you can have caught by this point. From this guide’s own encounter tables, by Thunder Badge — Rock Tunnel to Celadon City: