Poisonous Aura. Any time a creature would come within 5 ft. of the Abyssal Horror (Freighter), it must make a DC 13 Dexterity saving throw to avoid taking 1 poison damage, taking none on a successful save.

Bursting with Toxins. If the Abyssal Horror (Freighter) is reduced to 0 hit points, it explodes, releasing a Burst of poison. Each creature that is within 10 ft. of the Abyssal Horror (Freighter) when it dies must make a DC 15 Dexterity saving throw, taking 1d4 poison damage on a failed save, or half as much on a success.