Athasian Minstrel Utility 2Concealed Weapon
You have learned how to keep a weapon completely hidden from searching eyes.
Minor Action Personal
Target: One weapon you’re holding
Effect: The target weapon is invisible until the end of the encounter or until you attack with it. The first target you attack with a weapon affected by this power grants you combat advantage for that attack.
Published in Dark Sun Campaign Setting, page(s) 38.