Total Control

"Dear Merlin,

I am sure you have many questions.
Well, maybe you don't. You were always kind of slow.
So, in case you haven't noticed, you can control the world. The minds and bodies of every human and animal, even the very fabric of reality.
Our family stems from a long line of wizards, starting with Merlin himself.
Yes, fairy tale Merlin. When the father dies, the son inherits the powers.
It's usually not the firstborn son, because most of us Merlins live a few hundred years. I was born in 1649, to your information.
I remember that when my father left me a similar letter after his , it was basically full of shit. Honor code here, responsibility there, all of that stuff.
You and I both know that this is nuts.
You. Are. God. And the world is your playground.#

Have fun,

your father, Merlin Sr."

You put down the letter, amazed at what you just read. But before you can really believe all that, you first have to find a simple way to test what your father wrote.