Volcamon

Volcamon (ボルケーモン) is a Digimon, who aspires to the title of "King of Digimon," like Etemon. He even fought with Etemon against the Chosen Ones.

Background
When Volcamon began to achieve the title of "King of Digimon," he competed with Etemon for it. And when the Chosen Ones arrived, they began to fight together against them. The sound waves they both made were so loud that they were going to destroy the Chosen Ones Digimon partners, but at the last moment Palmon developed into a Ponchomon, and began to fight against them. The fight got tough, but Ponchomon managed to beat him and Etemon, and then they both tried to get Ponchomon to perform as a pair. But it became nothing. Later he and Etemon reacted to the attack of a group of Soundbirdmon.