Conley was a trainer, who came to a village of the Decolore Islands. Some ghost Pokémon started to create trouble and havoc, so Conley came to the top of the mountain of the island. There he fought against the ghost Pokémon and a shining comet passed by, calming the ghost Pokémon. Since that day, the villagers, in respect for Conley, have named the comet after him. The ghost Pokémon were grateful as well and perform each time the Comet Dance to remember Conley by. In addition, Conley supposedly knew Anima, a maiden, who took his medal and gave it to Ash before vanishing.
Conley fought and calmed down the three Banette, who are defenders of the arena.