Aquatic Magics and Invocations

[Samloyal23]

Song of the Siren, dark, 8th

You sing a wordless melody of haunting beauty. Anyone who hears it must save versus Will or be compelled to follow you wherever you go, even to the depths of the ocean. A target who begins taking damage may attempt a second save. Failure indicates they will follow you even if it is suicidal to do so. A target also gains an extra save chance if you stop singing. You can sing at will for the duration of the invocation. You also project the illusion of incredible beauty, gaining a +6 Charisma bonus. This invocation lasts for 24 hours. This magical song can be heard up to a mile away on land or under the water.

 

[Dannyalcatraz]

Don't know that I can help off the top of my head, but you might find useful things in the Aquatic Database in my sig.

And [MENTION=2072]Aeolius[/MENTION] might be able to help, too.

 

[Samloyal23]

Just found this in my newsfeed on Facebook. I think it could lead to something...

http://www.jewsnews.co.il/2014/09/20/scientists-discover-an-ocean-400-miles-beneath-our-feet-that-could-fill-our-oceans-three-times-over/

 

[Dannyalcatraz]

If true, that is supercool!

 

[Samloyal23]

Note to Self: Monster abilities can be referenced for spells and items.

Giant Octopus

Ink Cloud (Ex)
A giant octopus can emit a cloud of jet-black ink 20 feet high by 20 feet wide by 20 feet long once per minute as a free action. The cloud provides total concealment, which the octopus normally uses to escape a losing fight. All vision within the cloud is obscured.

Jet (Ex)
A giant octopus can jet backward once per round as a full-round action, at a speed of 200 feet. It must move in a straight line, but does not provoke attacks of opportunity while jetting.

Porpoise

Blindsight (Ex)
Porpoises can "see" by emitting high-frequency sounds, inaudible to most other creatures, that allow them to locate objects and creatures within 120 feet. A silence spell negates this and forces the porpoise to rely on its vision, which is approximately as good as a human’s.

Hold Breath (Ex)
A porpoise can hold its breath for a number of rounds equal to 6 × its Constitution score before it risks drowning.

 

[Samloyal23]

If true, that is supercool!

Indeed. This would be an extremely hot, high pressure area of water, very alien to anything on the surface.
I am not sure what type of creatures could dwell in such a sea, if any. Quite intriguing...

 

[Starfox]

Deoxygenating the water in an area would be like making it a vacuum or filling it with smoke. All of a sudden water breathers would start suffocating in the area. In most places the effect would disperse pretty quickly, so it is not likely to be lethal, but most aquatic creatures would flee. The question is, would it affect creatures that use magic to breathe underwater?

Most adventures I've seen assume that water breathing needs oxygenated water to work. Spells that create air,or turn water to air, or remove the need to breathe altogether, do not.

 

[Samloyal23]

I looked at the 3E PH description of the Water Breathing spell. It mentions the recipient being subject of a transformation. To me this implies it alters the target to allow that person to breathe water. The water is not turned into air. That would mean it would not work in deoxygenated water.

So, what would allow a creature to breathe under such circumstances?

 

[Dannyalcatraz]

A tube.

 

[Starfox]

That would mean [water breathing] would not work in deoxygenated water.

So, what would allow a creature to breathe under such circumstances?

Most adventures I've seen assume that water breathing needs oxygenated water to work. Spells that create air,or turn water to air, or remove the need to breathe altogether, do not.

Answered your question pre-emptively.