Guzma is the leader of Team Skull, a criminal organization in the Alola region. He is characterized by his aggressive personality and his belief that the Pokémon League and island challenge are unnecessary obstacles. Guzma actively seeks out battles to prove his strength, as demonstrated when he confronts the player character Selene upon noticing her Z-Ring. Despite his antagonistic nature and leadership of Team Skull, Guzma serves as a significant rival throughout the player's journey through Alola, representing a challenge to traditional Pokémon training philosophies.