25highest level
Biker William fields 5 Pokémon at level 25 in Route 17.
Fought at Route 17.
This is around Rainbow Badge — the sea routes and Fuchsia City in the story — that page lists everything you can have caught by this point.
Types on this team: Poison ×5
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Koffing Lv 25 Poison | Smokescreen Sludge Smog Tackle | HP40Attack65Defense95Sp. Atk60Sp. Def45Speed35Total340 | |
 | Weezing Lv 25 Poison | Smokescreen Sludge Smog Tackle | HP65Attack90Defense120Sp. Atk85Sp. Def70Speed60Total490 | |
| Koffing Lv 25 Poison | Smokescreen Sludge Smog Tackle | HP40Attack65Defense95Sp. Atk60Sp. Def45Speed35Total340 | |
| Koffing Lv 25 Poison | Smokescreen Sludge Smog Tackle | HP40Attack65Defense95Sp. Atk60Sp. Def45Speed35Total340 | |
| Weezing Lv 25 Poison | Smokescreen Sludge Selfdestruct Tackle | HP65Attack90Defense120Sp. Atk85Sp. Def70Speed60Total490 |
How to beat this team
Shared weaknesses. Ground hits 5 of 5, Psychic hits 5 of 5.
Level to be ready for. Lv 25 — Koffing, the highest on the team.
Ground Pokémon you can have caught by this point. From this guide’s own encounter tables, by Rainbow Badge — the sea routes and Fuchsia City: