32level cap
This fight happens in Tier 5 of 8 — fought with 4 badges already (level cap 32) only.
Viola fields 4 Pokémon between level 28 and level 32 in Rustboro City Gym.
This is around 4 badges in the story — that page lists everything you can have caught by this point.
Types on this team: Bug ×4Flying ×3
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Masquerain Lv 30 BugFlying | Ability Intimidate | Bubble Beam Quiver Dance Bug Buzz Air Cutter | HP70Attack60Defense62Sp. Atk100Sp. Def82Speed80Total454 |
 | Volbeat Lv 28 Bug | Ability Swarm | Bug Bite Confuse Ray Zen Headbutt Aerial Ace | HP65Attack73Defense75Sp. Atk47Sp. Def85Speed85Total430 |
 | Ninjask Lv 30 BugFlying | Ability Speed Boost | Dig Fury Cutter Bug Bite Aerial Ace | HP61Attack90Defense45Sp. Atk50Sp. Def50Speed160Total456 |
 | Beautifly Lv 32 BugFlying | Ability Swarm Held item Sitrus Berry | Giga Drain Air Cutter Leech Life Psychic | HP60Attack70Defense50Sp. Atk100Sp. Def50Speed65Total395 |
How to beat this team
Shared weaknesses. Fire hits 4 of 4, Flying hits 4 of 4, Rock hits 4 of 4, Electric hits 3 of 4.
Level to be ready for. Lv 32 — Beautifly, the highest on the team.
Fire Pokémon you can have caught by this point. From this guide’s own encounter tables, by 4 badges: