25level cap
This is around Beat Leader Whitney — Goldenrod City Gym, badge 3 in the story — that page lists everything you can have caught by this point.
Types on this team: Ghost ×3Poison ×2Normal
| Pokémon | Moves | |
|---|---|---|
 | Haunter Lv 24 · Levitate | Hypnosis Nightmare Curse Night Shade |
 | Stantler Lv 23 · Intimidate | Swift Hypnosis Nightmare Leer |
 | Misdreavus Lv 24 · Levitate | Shadow Ball Pain Split Perish Song Psywave |
 | Gengar Lv 25 · Levitate · Sitrus Berry | Hypnosis Shadow Ball Mean Look Dream Eater |