Sea Domain
The Sea Domain is a d20-era divine sphere of ocean authority, maritime warning and dangerous coastal magic. Its published rules come from Bastion Press’s Lore of the Gods: Greek Gods, where Poseidon grants it to priests who carry the sea’s danger with them.
At a Glance
| Divine Sphere | Sea, coastlines, maritime warning, waves, salt and ocean creatures |
|---|---|
| Published Rules | d20 / D&D 3.5-era third-party Open Game Content |
| Source | Lore of the Gods: Greek Gods, Bastion Press |
| Source Patron | Poseidon |
| Campaign Patrons | Poseidon, Njord |
| Other Editions | No official same-named Pathfinder 1e, 5e/2014 or 5.5e/2024 domain is presented here |
Edition Applicability
This is the published d20-era Sea Domain from Lore of the Gods: Greek Gods. Its bespoke spells and trident-based granted power are preserved as legacy rules. Later editions should use their own published water, tempest or ocean options unless a separately labelled adaptation is introduced.
Sea Domain — d20 / 3.5-era
Rules status: published third-party Open Game Content.
Granted Power
Any trident you hold, magical or mundane, can provide the warning power of a trident of warning three times per day. It does not gain the item’s normal +2 enhancement bonus to attack and damage.
Sea Domain Spells
| 1st | Dolphin Companion |
|---|---|
| 2nd | Kelp Snare |
| 3rd | Water Walk |
| 4th | Control Water |
| 5th | Tsunami |
| 6th | Saltspray |
| 7th | Red Tide |
| 8th | Horrid Wilting |
| 9th | Releasing the Kraken |
How the Sea Domain Plays
The domain begins as a mariner’s survival sphere and escalates into control of coastlines and open water. Its granted power rewards the trident as a sacred weapon, while the spell list progresses from a dolphin ally and entangling kelp to tidal catastrophe, poisonous blooms and finally the calling of a kraken.
Who Grants the Sea Domain?
The source domain belongs to Poseidon. The current divine directory also associates it with Njord, whose established portfolio makes the sea connection appropriate. The domain should remain distinct from the broader elemental Water Domain.
What Are Sea Priests Doing Now?
Sea priests are blessing fleets, reading dangerous swells, negotiating with harbour powers, tracking unnatural red tides and warning coastal rulers when storms or sea monsters are signs of divine anger rather than ordinary weather.
Related Domains and Character Options
Rules Sources and Licensing
The granted power and nine-spell progression derive from Lore of the Gods: Greek Gods by Steven Creech and Kevin Ruesch, published by Bastion Press as d20 3.5-era Open Game Content. Spells marked as new in the source retain their separate spell-page provenance.
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