Board Thread:General Discussion/@comment-25926288-20150323015448/@comment-25926288-20150323023910

Also, we don't know about Nyx. She guards the magical waters of the Well of Wonders that run s beneath all the lands and could even create powerful genies. She also talked about things such as fate.

Yeah, every immortal so far has had an object that centralized their power, be it staff, trident, wand, or dagger. I like to think that much of Poseidon's godly power was in the Trident and he maintained only some minor power and his immortality. I would have theorized that each ocean/sea (maybe seven of them) have their own sea god-king, but it seems that Poseidon may just be the only one.