Ceiling Dweller

Multiattack. The ceiling dweller makes two attacks: one to reach and one with its bite.

Reach. Ranged Weapon Attack: +8 to hit, reach 120 ft., one Medium or smaller creature. Hit: 17 (2d10 + 6) bludgeoning damage plus 17 (2d10 + 6) slashing damage. The target is grappled (escape DC 16) if the ceiling dweller isn't already constricting a creature, and the target is restrained until this grapple ends.

Bite. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 22 (3d10 + 6) piercing damage.

Swallow. The ceiling dweller makes one bite attack against a Medium or smaller target it is grappling. If the attack hits, the target is also swallowed, and the grapple ends. While swallowed, the target is blinded and restrained, it has total cover against attacks and other effects outside the ceiling dweller, and it takes 21 (6d6) acid damage at the start of each of the ceiling dweller's turns. A ceiling dweller can have only one creature swallowed at a time.

If the ceiling dweller takes 30 damage or more on a single turn from the swallowed creature, the ceiling dweller must succeed on a DC 14 Constitution saving throw at the end of that turn or regurgitate the creature, which falls prone in a space within 10 feet of the ceiling dweller. If the ceiling dweller dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 15 feet of movement, exiting prone.