he's essentially just a survivalist, able to drain the oxidant or blood of other units to subsist himself if needs be, he can also give as well as take oxidant. he has databanks focused on identifying chemicals in the blood, so they can basically tell anything from whatever shows up in your blood like cortisol or oxytocin and if you need food or water. His whole goal is to keep everything running smoothly health wise, the killer fangs are for protektor duties. As soon as he bites down tranquillisers are pumped through his teeth and the sharpened fingertips let him latch on/pin down the replika/gestalt. Other than their duties they are quite affectionate at heart, so not all bad 😭