Melee Weapon Attack: +16 to hit, reach 15 ft., one target. Hit: 18 (2d8 + 9) bludgeoning damage and the target is grappled (escape DC 25). A creature that starts its turn grappled by the Executioner suffers 11 (2d10) bludgeoning damage. The Executioner has only one tail and can grapple only one creature with it at a time.