Zaruthustran
The tingling means it’s working!
Hide normally requires some sort of cover or concealment:
Typically, characters with Hide go the Concealment route and hide in some sort of shadow. The problem is that creatures with Darkvision are unaffected by shadows:
Sure, you can still Hide from a character with Darkvision by using some sort of cover, or concealment from smoke. But it's tougher than I thought to sneak attack orcs, ogres, and other critters.
-z
Hide
You need cover or concealment in order to attempt a Hide check. Total cover or total concealment usually (but not always; see Special, below) obviates the need for a Hide check, since nothing can see you anyway.
Typically, characters with Hide go the Concealment route and hide in some sort of shadow. The problem is that creatures with Darkvision are unaffected by shadows:
DARKVISION
Darkvision is the extraordinary ability to see with no light source at all, out to a range specified for the creature. Darkvision is black and white only (colors cannot be discerned). It does not allow characters to see anything that they could not see otherwise—invisible objects are still invisible, and illusions are still visible as what they seem to be. Likewise, darkvision subjects a creature to gaze attacks normally. The presence of light does not spoil darkvision.
Concealment
Ignoring Concealment: Concealment isn’t always effective. A shadowy area or darkness doesn’t provide any concealment against an opponent with darkvision.
Sure, you can still Hide from a character with Darkvision by using some sort of cover, or concealment from smoke. But it's tougher than I thought to sneak attack orcs, ogres, and other critters.
-z