[Rita keeps her eyes narrowed at him until he changes the subject, at which point her expression softens a bit. He wants to know the specifics? Most people can't handle the specifics.]

It's the most commonly used form of magic, where I'm from. To distinguish it from other forms, I suppose it could be called 'blastia magic'. It requires the use of a blastia for energy conversion.

[She points to the red-jeweled gold choker on her neck.] This is the one I use.