Planewalkers in Water (TIP)

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Most folks end up in the City of Glass when they first come to Elemental Water. It's an interplanar hub as cosmopolitan as any gate-town on the Outlands, although most of the inhabitants are amphibious or natural air-breathers. Merchants here make a fine bit of jink selling water-breathing aids to the airbreathers and air-breathing aids to the water-breathers.
Recent chant in the plane of Water includes the fact that dao slavers have stepped up their habit of raiding the settlements of the plane's intelligent races. This fact implies two things: that the dao have a new access into the plane, and that there's a demand somewhere for water-breathing slaves. Some believe that a powerful wastrilith in the Abyss has offered the slavers some great prize if they'll provide it with a sea-borne army to fight Demogorgon's ixitxachitl hordes. In any event, planewalkers experienced in finding hidden planar routes are being sought by the natives of Water to find how the dao are making their new incursions.
==Spell Keys and Other Necessities==
Some spells suffer odd alterations due to the physical nature of the plane. Physical conjurations (such as an ice storm) tend to simply drift rather than raining down on an opponent. Lightning bolt becomes an electrical globe that functions as an underwater fireball. Little can be done about such physical limitations, but spell keys allow a wizard to overcome most of the restrictions placed upon her by the nature of this plane, especially those involving the schools of Elemental Air and Earth.
Spell keys created for use in the plane of Water are physical objects, just as those used in the plane of Earth. They always take the form of a magical inscription carved upon the tooth or bone of an aquatic creature. The delicate patterns required can be fashioned only by masterful artisans. Even if they were not valuable for their magical powers, these keys would be highly desired for their artistic beauty.
Such keys need not be large. Water genasi (and other) wizards native to the plane commonly carry a number of them on a necklace or charm bracelet.