Aptom is a battle creature that pursues other Zoanoids created by Chronos, with the exception of Lost Numbers. By assimilating small amounts of DNA from other Zoanoids, he can replicate their forms and abilities, as well as combine the traits of multiple Zoanoids within a single body. Even when only fragments of him remain, Aptom can regenerate. Upon discovering this ability, he started hunting Zoanoids to acquire their powers and bio-matter, aiming to become the most powerful battle creature, which led him to turn rogue against Chronos.
Once a member of the Lost Numbers, Aptom has evolved into a being capable of absorbing Zoanoids and incorporating their abilities. He also possesses the remarkable ability to regenerate.
