Darkest client description.

With a gift since birth, if you answer this riddle: Who I be?
The fetus of a demon,
Semen from the tip.
Of the penis I'm the only thing
That you see when you're dreaming,
Armageddon and aftermath
This may blog in paragraphs.
Sit on a throne, full of X's and bones
Blowing smoke and I laugh.
Turning sinners like you,
Into my personal acid tabs.
Let me put you up on game,
I've been shot, burned, and stabbed, and still ain't deceased,
I carry the mark of the beast
Now can you tell me
Who the fuck I be?
Client, as the guyreplies
Wine, red wine was the color of his eyes
Coughing a lot of blood like Piru, but he slowly dies
As his eyes close shut, in prison was his eternal life

Realisation of the client being devil.