Mobogos are massive, swamp-dwelling monstrosities that combine the worst aspects of giant toads and evil dragons. Lazy, cruel, and greedy, these vile creatures make their lairs in the most ancient and primordial swamps. The boggards who call such places home worship mobogos as living demigods, regularly bringing sacrifices of food and valuables lest they become the next victims of the mobogos' boundless appetites.