Aptom is a battle creature that hunts down other Zoanoids created by Chronos (except Lost Numbers). By absorbing small amounts of DNA from other Zoanoids, he can replicate their forms and powers, as well as mix the attributes of several Zoanoids in one body. He can regenerate himself even if only small pieces of him are left. Since discovering this ability, he begins killing Zoanoids to take their powers and bio-matter in order to become the most powerful battle creature and became a renegade from Chronos.

Aptom once a member of the lost numbers is now a being capable of absorbing zoanoids and taking their abilities. He also has the ability to regenerate.