Tuathan Utility 6Bargain of Truth
Clasping hands, drawing blood, or placing marks on a scroll of magic parchment, you seal a mystical pact with another creature to speak no lies.
Minor Action Close burst 5
Target: One willing creature in the burst
Effect: Until the end of the encounter, you and the target must speak truthfully to each other. Whenever either target knowingly lies to the other, the listener knows it, and the liar is restrained and weakened (save ends both).
Published in Heroes of the Feywild, page(s) 112.