Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 21 (3d8 + 8) piercing damage. If the target is a Huge or smaller creature, it must succeed on a DC 19 Strength saving throw or be swallowed by the charybdis. A swallowed creature is blinded and restrained, it has total cover against attacks and other effects outside the charybdis, and it takes 24 (7d6) acid damage at the start of each of the charybdis's turns. If the charybdis takes 40 damage or more on a single turn from a creature inside it, the charybdis must succeed on a DC 26 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of the charybdis. If charybdis dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 10 feet of movement, exiting prone.