That's not magic, it's science.

[ Seto smiles. ]

I study Modification. That's the branch of magic that rewrites the world by understanding it all as formulas. Basically...by understanding how something works, you can change its form.

[ Still...why is Marik here, and so small? With that rumpled hair he looks cute and not menacing. ]

My name's Seto Kaiba. You're a new student, right?