Sea

The only surviving member of the The Elder Triad. Sea is Chaotic Neutral. Like Earth and Sky were Sea is not so much a personality as a force. Sea is believed to be the most powerful of all Gods by theologians and it is only Sea's nature as an observer that keeps it from being the most prominent object of worship in existence.

Sea has few clerics. They offer the Magic, Travel, Water and Weather domains to the small number permitted to be true clerics. Sea is a being of suitable might that they could offer any domain to a follower if the situation merited such an action.

Secretive Relations with Illumos
Sea serves Illumos as his most mighty proxy power in the planes. Sea is a powerful deity in their own right, but not substantially more so than Euberk or Gaia. They do have license to draw upon the stored power of Illumos within The Register when needed. The notion that Sea is uninterested in the world and so only acts as an observer is false- the reality is that Sea is one of two close partners of Illumos and so is the only one who is "in on the plan". Even the overgod gets lonely and needs advice, and so the mighty Illumos spends much time treating with Sea and their wisdom. Likewise occupying Sea's time is the perpetual watch over Change Eternal, trapped within the heart of Oenus. These tasks prevent the mighty Sea from taking an active role in the world like they used to.