Grovyle is the partner Pokémon of Sawyer, his first Pokémon, and evolved during a rematch with Ash's Frogadier in Laverre City. After evolution, it became more powerful and agile and used its moves such as Leaf Blade and Bullet Seed to try and defeat Frogadier but still fell to Frogadier's overwhelming speed and strength. Due to this, it appears to have started a rivalry with Frogadier.

Sawyer used Bagon in his match against Valerie's Spritzee. It was also used in a Double Battle against Ash's Frogadier and Hawlucha. It is heavily defensive and managed to withstand a barrage of attacks from Hawlucha. It has the move Fire Fang to do damage, as well as the move Dragon Pulse before Sawyer learned that Dragon-type moves were ineffective against Fairy-type Pokémon. It was then used in battle against Ash's Pikachu where it quickly fell.

Sawyer called on Slurpuff after his notebook went missing. Sawyer used Slurpuff to hunt down the missing notebook. It was used in battle against Ash's Hawlucha where it used moves such as Electro Ball to try and defeat Hawlucha, before quickly falling despite the type advantage.

Treecko is the partner Pokémon of Sawyer, his first Pokémon, and was used in his gym battle against Clemont's Luxray. Despite its powerful strategies and moves such as Bullet Seed, it eventually fell in battle to the Luxray. It was then used against Ash's Frogadier and Hawlucha in a battle where it eventually fell to Frogadier's onslaught. It then evolved during a rematch with Frogadier.