So I finally watched this after hearing good things about it, but aside from the relationships of the main trio and the dark siblings, it didn't really grab me.
In particular, they seem to be pitching dark magic as bad, but aside from the eye effects that's not really selling, unless there's some hint that everyone is vegan or dark magic really hurts the user/ the drained animal that I'm missing. Most of it we see done uses already dead animals, like the tentacles. There seem to be no ill effects for experienced users.
It's clearly supposed to cross a line that Claudia used a baby deer for regenerative magic, but why? Is that worse than hunting the deer? Does it not get to go to deer heaven now?