User blog comment:LastationLover5000/Fairy Tail 283 - In Which Nakama Is Spoken (Natsu vs. Sabertooth)/@comment-3030647-20120520044118

Alrighty guys, since I am bored as well.....bored can be, I'm gonna give a little theory on Minerva's magic. So, it looks like she uses at first? (If anyone remembers the magic negator thing) and then she changes and uses a form of summoning to bring to where she is. Well, in essence you could possibly say that both aspects of this magic have to do with Divination and Space-Time. Both of these concepts have something to do with the concept of Onmyoudou. (If anyone knows what that is). So, I would assume that Minerva uses a form of space-time magic (Yes, sounds OP I know, but listen) which allows her to manipulate the immediate fabric of space-time in order to do several things. First thing is to create a barrier which seemingly has the shape of a Yin and Yang symbol (it's what I got out of it anyway) which is capable of negating all magic via the use of a barrier of rejection (sorta like Orihime's actually), secondly she is able to cause a unique form of teleportation through similar means, albeit she materializes them likely by manipulating the space surrounding them by first freezing time before using spacial transportation for an instantaneous relocation. Yeah, that's about it :P