Volo's Guide to Monsters
Innate Spellcasting: The Babau's innate spellcasting ability is Wisdom (spell save DC 11). The Babau can innately cast the following spells, requiring no material components:
Multiattack: The Babau makes two melee attacks. It can also use Weakening Gaze before or after makingg these attacks. Claw: Melee Weapon Attack: +6 to hit, reach 5ft., one target. Hit: 8 (1d8 + 4) slashing damage. Spear: Melee or Ranged Weapon Attack: +6 to hit, reach 5ft. or range 20/60ft., one target. Hit: 7 (1d6 + 4) piercing damage or 8 (1d8 + 4) piercing damage when used with two hands to make a melee attack. Weakening Gaze: The Babau targets one creature that it can see within 20ft of it. The target must make a DC 13 Constitution saving throw. On a failed save, the target deals only half damage with weapons 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 succes.