Thread:B1bl1kal/@comment-24618333-20160925124127/@comment-1682045-20161018160612

It's probably the influence of whatever spell that brings them to life. As for creatures possessin' souls of their own upon comin' to life, it's hard to say. Some would say for this to work would require using life in order to create life.

As for creatures like the Plague Flies, they would be occultically (is that even a real word?) enchanced, like that plot of The Tuxedo with the Water Strider flies (the truth behind the "Walter Strider" mystery).