Exedra is one of Ayden's Pokémon currently residing at Ayden's home in Phenac City.
As a Hydreigon, Exedra is skilled in both physical and ranged attacks. Although he was initially incredibly violent and destructive and would attack anything that moved, he eventually became more docile and befriended a few of Ayden and Ingrid's Pokémon.
Ayden met Exedra in Victory Road where he helped her navigate the cave. After they exited the cave, she asked him to join her. After he evolved into Hydreigon, he grew increasingly violent and destructive and it took a very long time to calm Exedra down and make him more docile.
He was primarily used by Ayden during her time in Unova and now currently resides in her home in Phenac City.
Exedra is named after the Bakugan character of the same name.