POSEIDON - He is one of the twelve Olympian deities of the pantheon in Greek mythology. His main domain is the ocean, and he is called the "God of the Sea". Additionally, he is referred to as "Earth-Shaker" due to his role in causing earthquakes.
Hades - Greco - Roman god of the Underworld and wealth (because all precious metals or jewels that are in the ground belong to him). He is one of the twelve Olympians. His symbol is the Helmet of Darkness which makes him invisible when worn.