Anaconda with a Gun

Regurgitate Prey: If the Anaconda with a Gun has used its Swallow ability within the past 24 hours, the snake may vomit up its prey, either alive or dead. All other creatures able to see or hear this must make a DC 14 Wisdom check or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the snake's Regurgitate Prey for the next 24 hours.

Bite. Melee Weapon Attack: +6 to hit, reach 10 ft., one creature. Hit: 11 (2d6 + 4) piercing damage.

Constrict. Melee Weapon Attack: +6 to hit, reach 5 ft., one creature. Hit: 13 (2d8 + 4) bludgeoning damage, and the target is grappled (escape DC 16). Until this grapple ends, the creature is restrained, and the snake can't constrict another target.

Swallow. The Anaconda with a Gun makes one bite attack against a medium or smaller target it is grappling. If the attack hits, the target is swallowed, and the grapple ends. The swallowed target is blinded and restrained, it has total cover against attacks and other effects outside the Anaconda with a Gun, and it takes 8 (2d8) acid damage at the start of each of the Anaconda with a Gun's turns. The Anaconda with a Gun can have only one target swallowed at a time. If the Anaconda with a Gun dies, a swallowed creature is no longer restrained by it and can escape from the corpse using 5 feet of movement, exiting prone.

Gun. Ranged Weapon Attack: +3 to hit, range 40/120 ft., one target. Hit: 8 (2d8) piercing damage.