The Colossodron is a massive, heavily thick-skinned creature that towers over many other creatures in the Nagan Empire's jungles. Its thick, scaly hide is almost impenetrable, and its powerful jaws can crush even the hardest of substances. Its eyes are small and beady, giving it a somewhat dim-witted appearance, but in reality, the Colossodron is a highly effective hunter. Its favorite prey consists of other large animals that roam the jungle, such as Tyranadons or Ajuntasaur. It is a solitary creature that roams the jungle in search of food and territory to claim as its own. Its hunting tactics typically involve lying in wait near watering holes or other areas where prey is likely to congregate, then using its powerful jaws to crush its victim's bones and consume them whole.
Despite its immense size and strength, the Colossodron does have some weaknesses. Its thick skin is vulnerable around the joints, and it is notoriously slow and lumbering after it has made its first charge. It also has a relatively low intelligence, making it susceptible to traps and other clever tactics. However, due to its ferocity and the danger it poses to anyone who crosses its path, most people prefer to avoid it altogether.