Question: who was zabuza sword in boruto?
Answer: The Executioner's Blade is one of the Seven Ninja Swordsmen of the Mist's swords, wielded in life by Zabuza Momochi. After his death, his old student, Suigetsu Hozuki, came into possession of the sword for a period of time, losing it when he was captured and arrested in the Land of Iron.