My pride and joy, The Bad Guys, is about a boarding school for future villains and henchmen.... And their cannon fodder too.
https://www.rpnation.com/threads/the-bad-guys-open.331495/#post-7840732
"Strix" is a genus of owls and "Desmodus" is a genus of bats, specifically of vampire bats.
As for the Strix part, that's also vampire associated, just Google it- In ancient Rome, witches wre thought to turn into owl-like creatures and suck babies' blood. It's also where the word "Strigoi" comes...