Wounded Fury. While it has 10 hit points or fewer, the quaggoth has advantage on attack rolls. In addition, it deals an extra 7 (2d6) damage to any target it hits with a melee attack.
Multiattack. The quaggoth makes two claw attacks. Claw. Melee Weapon Attack: +5 to hit, reach 5 ft. one target. Hit: 6 (1d6 + 3) slashing damage.