Cores are objects that appear in the Sonic the Hedgehog spin-off comic series, Sonic Universe published by Archie Comics. They are the concentrated spirit of people in Dark Mobius that Dark Enerjak is able to remove from his victims.
Enerjak can then use those Cores to create Prelates, which have the physical likeness of the bodies the Core belonged to. The process of extracting the Core seems to be painless and relatively quick and after the extraction, the victim is more or less alive, but it's rather hard to tell, as said victims become limp, have their faces frozen with the expression they had during the extraction, and are silent.
- A Core can be considered the equivalent to a soul.
- Creating slaves as his Prelate warriors