27level cap
Gym Leader Surge fields 6 Pokémon between level 26 and level 27 in Vermilion City Gym.
This is around Cascade Badge — Vermilion City in the story — that page lists everything you can have caught by this point.
Types on this team: Electric ×5GrassNormalPoisonPsychicSteel
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Electrode (Hisui) Lv 26 ElectricGrass | Ability Static Held item Miracle Seed Modest nature | Thunder Wave Spark Giga Drain Reflect | HP70Attack70Defense70Sp. Atk90Sp. Def80Speed140Total520 |
 | Magneton Lv 26 ElectricSteel | Ability Magnet Pull Held item Magnet Lonely nature | Thunder Wave Metal Sound Explosion Shock Wave | HP50Attack60Defense95Sp. Atk120Sp. Def70Speed70Total465 |
 | Electabuzz Lv 26 Electric | Ability Static Held item Black Belt Hasty nature | Reflect ThunderPunch Brick Break Fire Punch | HP65Attack83Defense57Sp. Atk95Sp. Def85Speed105Total490 |
 | Raichu (Alola) Lv 26 ElectricPsychic | Ability Static Held item TwistedSpoon Relaxed nature | Psybeam Shock Wave Signal Beam Thunder Wave | HP60Attack85Defense50Sp. Atk90Sp. Def85Speed100Total470 |
 | Porygon2 Lv 26 Normal | Ability Trace Held item Shell Bell Docile nature | Thunder Wave Shock Wave Secret Power Psybeam | HP85Attack80Defense90Sp. Atk105Sp. Def95Speed60Total515 |
 | Weezing (Galar) Lv 27 ElectricPoison | Ability Levitate Held item Sitrus Berry Adamant nature | Sludge Shock Wave Secret Power Toxic | HP65Attack90Defense120Sp. Atk85Sp. Def70Speed60Total490 |
How to beat this team
Shared weaknesses. Ground hits 4 of 6, Bug hits 2 of 6, Fighting hits 2 of 6, Fire hits 2 of 6.
Level to be ready for. Lv 27 — Weezing (Galar), the highest on the team.
Ground Pokémon you can have caught by this point. From this guide’s own encounter tables, by Cascade Badge — Vermilion City:
- Diglett — Diglett's Cave, Lv 16
- Dugtrio — Diglett's Cave, Lv 16
- Dugtrio (Alola) — Diglett's Cave, Lv 16
- Rhyhorn — Diglett's Cave, Lv 16
- Cubone — Route 5, Lv 15
- Toedscool — Route 4, Lv 14
- Diglett (Alola) — Egress Cave, Lv 4
- Geodude — Egress Cave, Lv 4