In the category of "no shit", the murder-happy mage's name translates to "evil" in German.
You know, in case you hadn't caught on yet. To the manga's credit, is not at all subtle about this, so it's not like it doesn't credit its audience with the ability to consult a dictionary. Makes me wonder if it turns out the first mage she killed tried to do something shady and got his ass self-defenced, and she's actually pretty cool.