Dean

Dean is the gym leader. He is the last of the gym leaders you must face before you can take on the Elite Four. His gym is located in Sagittarius City. As the final gym leader, it is only natural that he should be the toughest, so expect a challenge when you enter his gym.

His psychic abilities allow him to practice some magic, and he is feared by all for his powers of sorcery. Little else is known about him, just that he keeps his gym open, letting trainers pass through only to leave empty-handed.