User blog comment:B214/Shin DxD 1 discussion/@comment-37165251-20190120161656/@comment-71.221.38.212-20190126034525

The "Genetic Atavism" rang a bell for me. In the old movie 'Gremlins 2:the New Batch', the gremlin that became smart & wore glasses mentioned his race was possessed for a "I hesitate to use the word atavism..." Basically it means rather than a genetic lottery winner, you have old dormant genes surfacing. E.G. Someone in a family bears no resemblance to either parent but is a near mirror image for a long deceased relative. Such a person could be referred to as "The Changeling" because it's the equivalent of long stored genetic traits being called upon due to genetic combination of parents "Such as Ingvild Leviathan's" somehow triggered dormant power/ appearance traits to surface with all the subtlety of a natural disaster.