34level cap
Duane (party 2: after reaching Staghorn Town) fields 5 Pokémon between level 28 and level 34 in Hepatica Gym.
This is around Hepatica Town — Duane and the Skull Badge in the story — that page lists everything you can have caught by this point.
Types on this team: Dark ×4FireFlyingGhostIcePoison
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Nyanell Lv 28 Dark | Faint Attack Heal Bell U-Turn Swagger | HP60Attack90Defense60Sp. Atk65Sp. Def55Speed110Total440 | |
 | Murkrow Lv 28 DarkFlying | Night Shade Pursuit Wing Attack Swagger | HP60Attack85Defense42Sp. Atk85Sp. Def42Speed91Total405 | |
 | Haunter Lv 31 GhostPoison | Shadow Ball Will-O-Wisp Mean Look Swagger | HP45Attack50Defense45Sp. Atk115Sp. Def55Speed95Total405 | |
 | Snowmad Lv 31 IceDark | Aurora Beam Faint Attack Agility Swagger | HP65Attack105Defense95Sp. Atk95Sp. Def70Speed105Total535 | |
 | Houndoom Lv 34 DarkFire | Flame Wheel Faint Attack Roar Swagger | HP75Attack90Defense50Sp. Atk110Sp. Def80Speed95Total500 |
How to beat this team
Shared weaknesses. Fairy hits 3 of 5, Fighting hits 3 of 5, Rock hits 3 of 5, Bug hits 2 of 5.
Level to be ready for. Lv 34 — Houndoom, the highest on the team.
Fairy Pokémon you can have caught by this point. From this guide’s own encounter tables, by Hepatica Town — Duane and the Skull Badge: