Hahaha! Hands off!
Well, it's pretty OBVIOUS I have powers that other people don't... because I have succeeded in making you do things you would never have done without me!
So you are forced to admit that I *am* magic. Of course, whether you acknowledge it or not, it doesn't matter.
You see, I picked the prize of you becoming my slave for if I could prove I had magic powers... but as you can see, you are already my slave.