Melee Weapon Attack: +17 to hit, 60 ft. reach, all targets in a 10-foot square. Hit: 75 (10d12 + 10) piercing damage. If the boiúna bites a single Large or smaller creature, the target must succeed on a DC 25 Dexterity or Strength saving throw (target's choice) or be swallowed by the boiúna. A swallowed creature is blinded and restrained, it has total cover against attacks and other effects outside the boiúna, and it takes 10 (3d6) acid damage and 21 (6d6) bludgeoning damage at the start of each of the boiúna's turns. If the boiúna dies, a swallowed creature is no longer restrained and can escape from the corpse by using 30 feet of movement, exiting prone.