20level cap
Blue Nugget Bridge (Wartortle line) fields 4 Pokémon between level 19 and level 20 in Nugget Bridge.
This is around Boulder Badge — Mt. Moon and Cerulean City in the story — that page lists everything you can have caught by this point.
Types on this team: Normal ×2DarkFlyingPsychicWater
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Pidgeotto Lv 19 NormalFlying | Ability Early Bird Held item Sharp Beak Quiet nature | Tackle Sand Attack Gust Quick Attack | HP68Attack65Defense60Sp. Atk55Sp. Def50Speed81Total379 |
 | Abra Lv 19 Psychic | Ability Synchronize Held item TwistedSpoon Lax nature | Confusion Teleport Brick Break Reflect | HP25Attack20Defense15Sp. Atk105Sp. Def55Speed90Total310 |
 | Raticate (Alola) Lv 19 NormalDark | Ability Guts Held item Black Glasses Hasty nature | Secret Power Bite Quick Attack Hyper Fang | HP55Attack91Defense60Sp. Atk90Sp. Def70Speed97Total463 |
 | Wartortle Lv 20 Water | Ability Torrent Held item Oran Berry Bashful nature | Water Pulse Bite Mega Punch Withdraw | HP59Attack63Defense80Sp. Atk65Sp. Def80Speed58Total405 |
How to beat this team
Shared weaknesses. Bug hits 2 of 4, Electric hits 2 of 4, Dark hits 1 of 4, Fairy hits 1 of 4.
Level to be ready for. Lv 20 — Wartortle, the highest on the team.
Bug Pokémon you can have caught by this point. From this guide’s own encounter tables, by Boulder Badge — Mt. Moon and Cerulean City: