29highest level
Erika (rematch) fields 3 Pokémon between level 24 and level 29 in Celadon City Gym.
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: Grass ×3Poison ×2
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Victreebel Lv 29 GrassPoison | Stun Spore Acid Poison Powder Giga Drain | HP80Attack105Defense65Sp. Atk100Sp. Def70Speed70Total490 | |
 | Tangela Lv 24 Grass | Poison Powder Constrict Ingrain Giga Drain | HP65Attack55Defense115Sp. Atk100Sp. Def40Speed60Total435 | |
 | Vileplume Lv 29 GrassPoison | Sleep Powder Acid Stun Spore Giga Drain | HP75Attack80Defense85Sp. Atk110Sp. Def90Speed50Total490 |
How to beat this team
Shared weaknesses. Fire hits 3 of 3, Flying hits 3 of 3, Ice hits 3 of 3, Psychic hits 2 of 3.
Level to be ready for. Lv 29 — Victreebel, the highest on the team.
Fire Pokémon you can have caught by this point. From this guide’s own encounter tables, by Thunder Badge — Rock Tunnel to Celadon City:
- Growlithe — Route 7, Lv 15
- Vulpix — Route 7, Lv 15
- Charmander — Route 24, Lv 7