Aster Phoenix joined the shadow force in it's early days. Etna tested him before he could join like the others. He had to steal Yugi's Slifer the sky dragon card after Bakura failed to do so. He enjoys killing his opponents slowly and painfully. He helped Marik take over Aqua's mind and later helped Etna kill her. he doesn't fight Goku and his friends often, but when he does he takes some of them down in shadow games.