Astral dreadnoughts were gargantuan outsiders that roamed the Astral Plane. Astral dreadnoughts were massive creatures. They had a single, large eye above a large mouth filled with sharp teeth. Instead of hands, they had crab-like pincers, which were incredibly strong and lined with sharp, serrated edges. Their entire body was protected by a layer of strong, spiked armor plates, and their lower half of their body was serpentine. Legend had it that their lower half was infinite, stretching off in