Laws of physic are just an old habit
There are already quite inspiring answers here. I just want to point out something not outlined so far.
We are used to see the laws of physic as stable and everlasting, they have ever been, they will ever be, they will never change. We only believe that. We have no evidence.
When where these laws born? Has they been already before the universe was born? Are they a fixed part of our universe and could never has been different from what they are now? That is implausible.
A least, we already know that our universe is not mechanic, but has an unforseeable base of events in the smallest known parts of matter, not following the used thoughts of cause->impact.
Think of this possibility: As the universe was born in a big bang, there has been no laws of physic. Matter and energy was something completly new, and nothing and no one told them how they should behave. But they happened to be. And they interacted with each other and got used to behave in new ways that never has been defined. As time goes by, this used-to-behave become a habit, this habit established over some X*1.000.000.000 years. These habits are what we see as stable rules with obviously (?) no exception. (Compare this book: Rupert Sheldrake: Morphic Resonance - The Nature of Formative Causation)
You know, habits have their own power, and it is difficult to diverge from them, after getting older than xy years. What about the universe? It is quite old, yeah.
You don't need to change the laws of physic. It is enough to persuade the universe to deviate from its habits a bit. Nothing needs to break. It is always possible that something quite improbable happens.
The magician knows how to summon the universe doing something really crazy. Little daughters do crazy things, too, not foreseen by adults.