Cores were possibly created due to soul mutation by the Xorda, cause only Mobians and Overlanders have then, they literally could be Super Mutant Hearts!

You mean when they bombarded the earth with Gene Bombs? Because the bombs only mutate genes (de-evolved humans and evolved animals), and the soul isn't a gene. Wikification (talk) 07:04, September 11, 2016 (UTC)
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