43level cap
This is around Starting out — Celadon City HQ (and everything no mission gates) in the story — that page lists everything you can have caught by this point.
Types on this team: Poison ×5BugFlyingWater
| Pokémon | Moves | |
|---|---|---|
 | Tentacruel Lv 40 | Acid Spray Barrier Water Pulse Poison Jab |
 | Weezing Lv 40 | Haze Dark Pulse Sludge Bomb Explosion |
 | Golbat Lv 43 | Air Cutter Acrobatics Mean Look Poison Fang |
 | Venomoth Lv 39 | Psybeam Sleep Powder Gust Signal Beam |
 | Muk Lv 41 | Poison Jab Curse Screech Sludge Bomb |