20highest level
Fought at Route 38.
This is around Beat Whitney — Goldenrod City Gym, badge 3 in the story — that page lists everything you can have caught by this point.
Types on this team: GroundWater
| Pokémon | Moves | |
|---|---|---|
 | Wooper Lv 20 · Water Absorb | Water Gun Mud Bomb Slam Mud Shot |