Thread:B1bl1kal/@comment-24618333-20160925124127/@comment-24618333-20161019051303

Perhaps the flies may supernaturally altered in genetic level or something to made them carry out plague outbreak under the conjuror's orders.

Plus, given that Balthazar animated his steel eagle to life without need to sacrifice any living beings/humans for required soul when performing Animation spell, it can be assumed that creatures that animated via Animation spell includes Horvath's wolves and bull statue is technically have no soul, but have mystical influence on them which property mimicked actual soul instead.