You can unlock Regulus Black after you learn Agumenti, but not sure if he is able to use dark magic (haven't bought him yet).
He was a death eater, so not sure
Edit: went to buy him, he costs 1 mil studs, so i'm guessing he can use it, but i bought some stud multipliers and going to find out --- PSN= Dbarr74 XBox live= Dbarr74 http://www.youtube.com/watch?v=4M2q9F289WU
Ok Regulas can not use Dark Magic, also found Narcissa Malfoy as well and she can't use Dark Magic either (from a dark family, so I figured I'd give it a try) --- PSN= Dbarr74 XBox live= Dbarr74 http://www.youtube.com/watch?v=4M2q9F289WU
The first I've found is Antonin Dalahov in the Astronomy Tower accessible from the courtyard outside Professor Trelawney's classroom (must have Hermione's Bag skill). --- Sent from my iPad via PowerFAQs 1.9