Void in Space
Type of Feat: Class Ability
Prerequisites: Cavestalker 9th level
Specifics: Your attunement to the particular atmosphere of the Underdark allows you to warp the shadows, sounds, scents, and vibrations you give off, rendering you difficult to hear and see. You gain Displacement 8% and a +2 bonus to hide and move silently
Use: Automatic
Also, is there a list somewhere of what Feats—especially clickable/toggle Feats such as IKD, IPA, HiPS, etc.—that work in Wild Shape?
Stealth/IPA/Search/Track all work along with any other mode that appears in your mode quickbar. Combat clickies like Stunning Fist, IKD or Disarm won't work because they are greyed out and unusable after polymorphing/wildshaping.
I see not why? Unless there is a shape with a big weapon.
Truman Capote, Breakfast At Tiffany's "... - it's better to look at the sky than live there. Such an empty place; so vague. Just a country where the thunder goes and things disappear."
Actually, cavestalker + hipsing earth elemental makes perfect sense.
Earth Glide (Ex)
A burrowing earth elemental can pass through stone, dirt, or almost any other sort of earth except metal as easily as a fish swims through water. If protected against fire damage, it can even glide through lava. Its burrowing leaves behind no tunnel or hole, nor does it create any ripple or other sign of its presence. A move earth spell cast on an area containing a burrowing earth elemental flings the elemental back 30 feet, stunning the creature for 1 round unless it succeeds on a DC 15 Fortitude save.