Aster Phoenix (Edo Phoenix in JP) is a professional duelist and a child prodigy. Famous for being a celebrity, he made an impact around the world, introducing Duel Monsters to the masses. Making an appearance in the second season of Yu-Gi-Oh! GX, he is better known to be the anti-hero counterpart to Jaden, and was able to be one of the few people who were able to beat Jaden Yuki in a duel.
Created by Aster Phoenix's father, Aster uses a Destiny Hero deck, consisting of Dark Warrior-Type monsters that resembles the "Elemental HERO" archetype that Jaden uses. Its playstyle revolves around using Clock Tower Prison by stalling the duel, and then destroying the field spell to special summon Destiny HERO - Dreadmaster, along with the other destiny hero monsters for a beatdown.