Challyrions are quadrupedal creatures encountered by the Andromeda Initiative. They possess a natural ability to actively camouflage. It possesses yellowish scales, spikes on its back, a short snout, clawed feet and a forked tail. Unlike Wraiths, which are genetically mutated from their species by the kett, they have no armor. Scanning one for the first time yields 50.
The Challyrion has both a ranged spit attack, similar to a shemrys, and a melee attack using its clawed front feet. The creature can be found on Eos, Havarl, and Voeld. The Challyrion has a habit of giving itself away before de-cloaking; as a result, it confronts its opponents by charging from behind when the prey least expected it. When taken down, Challyrions will sometimes drop scale fibers to collect.