A variation on the dryad's tree dependence?
Frostburn's rusalka has this:
Water Symbiosis (Su): Each rusalka is mystically bound to a body of water or a waterway as small as a pond or as large as a lake or river. Although aquatic, a rusalka can move as far as 300 yards from the body of water to which it is bound and breathe normally. If the rusalka strays farther than that, she must hold her breath or immediately start to drown. Once a rusalka has moved beyond the boundary of her connection, she cannot breathe normally until she has immersed herself in her body of water.
Rejuvenation like a ghost?
Alignment: Always chaotic, never good?
Let's skip this to avoid confusion.
A gaze attack vs. its killer only?
Make 'em variant ghosts, rather than incorporeal creatures?
It looks like a unique SA.
Control water SLA?
...or maybe it needs to be Su?
Terms for rejuvenation?
I could go with "drowned maidens' too. Sounds like a rock band.![]()
DIT: to respond to Cleon a little. Are we now going to make these new monsters with no ties to ghosts or make them variant ghosts? I kind of like the variant ghost idea, but a separate monster works too.
I'd make 'em ghostlike (ethereal rather than incorporeal all the time), but not a template.