I am.

I am the world's most horrible person.
Bow down and wonder at my powers of destruction.
No happiness or peace lives here,
Only sorrow and misery.

You want me to smile?
Here, the Joker says hello, happy now?
But really, why so serious?
Oh! Well that would be because I have no soul!

My only aim in life is to tear people to shreds.
To gut them and draw them out,
Enlightening them to the horror of the human condition.
Cruel, but kind.

I will make you cry and seethe,
I will make you question your own existence,
I will make you wish you never met me,
And I will do so using sarcasm.