65level cap
Champion Blue (Jolteon team) fields 6 Pokémon between level 60 and level 65 in Champion's Room.
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: Psychic ×2ElectricFireFlyingGrassGroundRockWater
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Alakazam Lv 63 Psychic | Thunder Wave Recover Psychic Double Team | HP55Attack50Defense45Sp. Atk135Sp. Def135Speed120Total540 | |
 | Rhydon Lv 60 GroundRock | Rock Slide Earthquake Horn Drill Submission | HP105Attack130Defense120Sp. Atk45Sp. Def45Speed40Total485 | |
 | Gyarados Lv 61 WaterFlying | Blizzard Hydro Pump Fly Hyper Beam | HP95Attack125Defense79Sp. Atk100Sp. Def100Speed81Total580 | |
 | Arcanine Lv 63 Fire | Fire Blast Dig Rest Hyper Beam | HP90Attack110Defense80Sp. Atk80Sp. Def80Speed95Total535 | |
 | Exeggutor Lv 62 GrassPsychic | Softboiled Egg Bomb Psychic Reflect | HP95Attack95Defense85Sp. Atk125Sp. Def125Speed55Total580 | |
 | Jolteon Lv 65 Electric | Double Team Headbutt Thunder Wave Thunder | HP65Attack65Defense60Sp. Atk110Sp. Def110Speed130Total540 |
How to beat this team
Shared weaknesses. Ground hits 3 of 6, Bug hits 2 of 6, Dark hits 2 of 6, Ghost hits 2 of 6.
Level to be ready for. Lv 65 — Jolteon, the highest on the team.
Ground Pokémon you can have caught by this point. From this guide’s own encounter tables, by Beat Giovanni — Viridian City Gym, badge 8: