Poseidon

Poseidon is a greater god and rules over water and the sea.

Description
Very little is known about Poseidon because he has had very little interaction with Harpy's Claw. What is known is that Poseidon is embroiled in a holy war against Jupiter for control of the pantheon. He uses his followers as a proxy to kill Jupiter's followers and cut off his supply of divinity, which he hopes will kill him.