User blog comment:IamJakuhoRaikoben/Sorcerer Magazine, Issue 41: May 2015/@comment-26418194-20150602121708/@comment-1153699-20150606171057

If Minerva's Magic is this absolute than I guess she can trap Acnologia in her bubble and he wouldn't be able to break out of it even if he uses his island busting roar from the inside right? I guess she can also move him to another dimension as well...

In a battle of Magic, the stronger Magic always wins. That's why Midnight could refract Erza's attacks but not Jellal's attacks.

The same thing would happen If Minerva tried to trap Laxus with her bubble. It's true that both Laxus and Minerva have different types of Magic, but it's still Magic. And the power of Magic depends on how much Magic one puts into it. There are plenty of examples for this in the manga: Gray freezing Fukuro's Flames and Juvia's water attacks, Natsu burning Sting's stigmata and breaking out of Genesis Zero (using DF), Gildarts crashing Bluenote's Black Hole, Erza (using Benizakura) overpowering Kagura, Erza (using Nakagami) dispelling Minerva's Magic, Gildarts disassembling Natsu's Roar, Rufus negating a non serious Gray's ice shield, Zancrow's attack overpowering Natsu's and the list goes on...

All Laxus has to do is put more Magic into his attack than Minerva puts on the bubble. And this won't be a problem for him since he has by far more Magic reserves than her.

And teleporting Laxus to another dimension doesn't count as winning. It counts as avoiding the fight..