The Testaceous possess significant physical strength, with each of them physically equal to more than three Terrans. They are tall and large, and their skin is composed of strong coral shells.
Their average height is three meters and due to their enormous fortitude they are considered the best fighters in the galaxy. Their skeleton expands outside of their body in the form of a rough coral shell, covering vulnerable spots such as joints, head, fingers and ribs. They can dismember Terrans with their bare hands. Their technology is better than any Terran equivalent, and their weapons and ships are crafted from coral shells, which only they know how to cultivate and shape.