Net Balls are a good ball to catch Grubbin with since they work best on Bug and Water-type Pokémon. If you’re at the beginning of the game, all Poké Balls have a 100% catch rate on Route 1 (note that this won’t be the case later on in the game).
If Grubbin keeps fainting in battle, turn on Exp. Share, which you can find in your bag. [2] X Research source You can also give your Grubbin a Rare Candy to gain a level. [3] X Research source Once your Grubbin is level 20, it will evolve into Charjabug.
You’ll find Fighting-type Pokémon like Machoke, Dark/Flying-type Pokémon like Murkrow, Steel/Flying-type Pokémon like Skarmory, Rock-type Pokémon like Boldore and Lycanroc, Rock/Fairy-type Pokémon like Carbink, and Dragon-type Pokémon like Jangmo-o in the canyon. Battle these to gain experience and level. You can also give your Charjabug a Rare Candy to gain a level. [5] X Research source
