54level cap
This is around Beat Brock — Pewter City Gym, badge 14 in the story — that page lists everything you can have caught by this point.
Types on this team: Rock ×5Ground ×3Water ×2
| Pokémon | Moves | |
|---|---|---|
 | Graveler Lv 51 · Sturdy | Defense Curl Rock Slide Rollout Earthquake |
 | Rhyhorn Lv 51 | Sandstorm Scary Face Earthquake Horn Drill |
 | Omastar Lv 53 · Shell Armor | Ancient Power Brine Protect Spike Cannon |
 | Onix Lv 54 · Sitrus Berry | Iron Tail Rock Slide Screech Sandstorm |
 | Kabutops Lv 52 · Battle Armor | Rock Slide Aqua Jet Endure Giga Drain |