They are enormous worm-like Grimm capable of burrowing underground and through the sands of Vacuo. They have a singular red eye and a giant fanged mouth. These Worms can range from 6 feet to as big as Flatback Sliders, and are built to be far faster when traveling in sands. Like the King Taijitu, they have a head on each end of their body
Their defenses include bone plates, hooks and acidic blood. Their attacks include spikes for teeth and are capable spitting acid.