Well, the vampires portrayed in this appear not to be very magical. When I stated that Dresden had his heart removed, which led to Magnus and thus Rhyss doing the same, I was working by the logic of Buffy, in which vampires are very magical creatures with a few very specific weaknesses. Here, they're just super-strong and tough humans who can regenerate, Personally, I'm retconning it for Dresden, as replacing one's heart with an artificial heart makes no sense in this setting.