Mighty Ambush (Ex)

Once per round, when the vigilante succeeds at a hidden strike, he can instantly drop the damaged enemy unconscious for 1d4 rounds. A successful Fortitude saving throw negates this effect (DC = 10 + 1/2 the vigilante’s class level + the higher of the vigilante’s Strength and Dexterity modifiers). Whether or not a creature’s saving throw is successful, it can’t be affected by that vigilante’s mighty ambush again for 24 hours. Only a stalker vigilante of at least 10th level can select this talent.