The babau’s innate spellcasting ability is Wisdom (spell save DC 11).
Weakening Gaze. The babau targets one creature that it can see within 20 feet of it. The target must make a DC 13 Constitution saving throw. On a failed save, the target deals only half damage with weapon attacks that use Strength for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Multiattack. The babau makes two Claw attacks. It can replace one attack with a use of Spellcasting or Weakening Gaze. Claw. Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 6 1d8+4 slashing damage plus 2 1d4 acid damage.