55level cap
Giovanni fields 5 Pokémon between level 53 and level 55 in Viridian City Gym.
This is around Beat Giovanni — Viridian City Gym, badge 8 in the story — that page lists everything you can have caught by this point.
Types on this team: Ground ×4Poison ×2NormalRock
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Dugtrio Lv 53 Ground | Earthquake Slash Fissure Rock Slide | HP35Attack90Defense50Sp. Atk70Sp. Def70Speed120Total435 | |
 | Nidoqueen Lv 54 PoisonGround | Earthquake Ice Beam Thunderbolt Body Slam | HP90Attack82Defense87Sp. Atk75Sp. Def75Speed76Total485 | |
 | Persian Lv 55 Normal | Slash Hyper Beam Bubblebeam Thunderbolt | HP65Attack70Defense60Sp. Atk65Sp. Def65Speed115Total440 | |
 | Nidoking Lv 54 PoisonGround | Earthquake Blizzard Thunder Sludge | HP81Attack92Defense77Sp. Atk75Sp. Def75Speed85Total485 | |
 | Rhydon Lv 55 GroundRock | Rock Slide Earthquake Submission Thunderbolt | HP105Attack130Defense120Sp. Atk45Sp. Def45Speed40Total485 |
How to beat this team
Shared weaknesses. Ice hits 4 of 5, Water hits 4 of 5, Ground hits 3 of 5, Fighting hits 2 of 5.
Level to be ready for. Lv 55 — Persian, the highest on the team.
Ice Pokémon you can have caught by this point. From this guide’s own encounter tables, by Beat Giovanni — Viridian City Gym, badge 8: