Tripwire Trick

Trickster. Rig a quick snare, caltrop scatter, cord, chair-leg catch, or slippery spill in a 5-ft. square. The first hostile creature entering or starting there makes a DEX save or falls prone and takes 1d6 bludgeoning or piercing damage.

This power has its own stable page so it can be linked from any character, item, location, story post, bargain, curse, or future reward.