Karen Mephelas

The leader of the Exia Faction and current Breaker, Karen is regarded as possibly the strongest Newtype in existence who invented the Cardinal System. At the age of twenty, he became a Breaker candidate and officially won the title at the age of 22. Being the current breaker, he is constantly challenged by faction legends for his title. It was his title that caused the Breaker's war between the forces of the Exia and the Dire faction. Karen holds the Newtype power Samsara, that allows him to switch any kind of matter into anything else, including the air around him itself. He defeated his Rival, Asriel, at Lagrange point 1, ending the Breaker's war.

As the Breaker, karen is the current de-facto leader of the Newtypes and all the Faction legends are answerable to him.