Many inquire why I'm so sadistic
Cold blooded
Callous
Barbarous
By this point, I'm sure your insufficient minds ponder who or what I am
Once you find out, you will surely be ******

I live in everyone, but only appear when the time is right
Many dread when I blacken their light

I eat souls for breakfast, prey on the weak
I often leave my companions with a streak

What am I? You ask
And I will tell
*i am death that dwells