Greater Siege Crabs are massive, heavily armored crustaceans used primarily in large-scale battles and fortifications. They can grow up to 20 feet long and weigh several tons. Their carapace is exceptionally tough, able to withstand significant damage, making them formidable living siege engines.

These crabs are equipped with powerful pincers capable of crushing through walls and other defenses. They also possess multiple smaller limbs for fine manipulation and climbing, which allows them to scale cliffs and other obstacles with ease. Their ability to traverse difficult terrain and their sheer destructive power make them valuable assets in both offense and defense.