Type of Feat: General
Skill Prerequisite: Set Trap 18
Feat Prerequisite: Set Trap: Spike, Set Trap: Bees, or Set Trap: Flash
Specifics: Upon succeeding a Set Trap check (DC 24), the user sets down a trap primed with a potent thunderstone. When triggered, all hostiles in the area receive 10d8 points of sonic damage and must succeed a Will save (DC 21) or be stunned for five rounds. This ability can be used every 30 seconds. The damage and DC of the trap are increased by the Craft Trap skill at a rate of +1d8 damage and +1 DC per four points of the skill.
Rogues get this feat for free at level 16.