Sand Snare

(Sandstorm, page 52, DnD 3.5)

[General]

When you knock your foes into the sand, they have a hard time regaining their feet.

Prerequisite

Combat Expertise, Improved Trip

Benefit

If you successfully trip an opponent in any area of ash, dust, loose earth, or sand that is at least 1 inch deep, that opponent must take a fullround action to stand during the round after being tripped. Following that round, the target can get to his feet with a move action (as normal). The opponent still provokes attacks of opportunity while attempting to stand, as normal