Adopt from  coltman
Author https://vk.com/notforchildrenyouknow

Arkaan, you might say, is Arkaim's "counterpart". The closest "party", and the name is not very different from that. Often all the party's creatures are called by their number-name, or, more precisely, by the number of the original created specimen, of which all the individuals are clones. So it is easier to manage, it is not necessary to memorize any differences between individuals, parties, as you can see, among themselves differ in appearance. This is true both for the subspecies "Sting", which is mass, and for its improved version "Shadow". For the former, you can know exactly what you're ordering to a group, while the latter often work one at a time, and there's no confusion here either. The reports sometimes add a serial number, which is also the number of the set of implanted artifacts. Exceptions - "personal" creatures, such as the Needle, for example. But there is often not much left of the "serial" individual - if the demon is able to improve the creature, he does so, not interested in opinion. So, yes, there are still half a hundred "Arkaims" running around the universe, however, which have almost exhausted their resource. So, Arkaan is the result of an attempt to find out how the creature managed to get rid of not only the tracking leash, but also from the controlling artifact and implanted in him a system of self-destruction. And what such a creature would be capable of. The second task is to track down the fugitive, and if possible, bring him back alive. To do this, Arkaan has not only been stripped of all artifacts, but then her metabolism and regeneration have been markedly reduced, so that her lifespan is now approaching a hundred years. Turning her into a demon has not been done, too risky, but there are plans to do so if she proves her loyalty. For now, she continues her training in Rank, as she is deprived of artifact magic.