Oceanus

Oceanus is the titan of water. He allied with the gods, but was betrayed by Zeus at the end of the Titan war. His soul was split into three parts; Axios, Arnos, and Agon each received a part.

Once Agon steps onto the Crasis, the party realizes that Oceanus cannot be fully revived, as Agon is now part of Typhon. They end up reviving Oceanus, but at 2/3 of his full potential.

Oceanus then rises from the seas and strikes Typhon down, only to collapse without the needed parts of his soul.