Demons are created, contingent beings like you are. In fact, you were even superior to them before to turned yourself into a beast of hell. you can even become human again if necessary. you are an unthinking possessed slave of demons; you invert the Truth because the Truth kills demons.
I not only know what you are saying, I already have killed some demons and I could even make yours experience very unpleasant things whenever you try to contact them to the poky they will do them to you to save themselves.
How do you kill immortal souls? Well, I'm the Prophet. your birth and that of your other rejects necessitated mine. The question is if you take the carrot of actual knowledge and you free us from your tyranny, or I give you the stick that frees us all from your tyranny.
That doesn't work, but you now have a Rosary. I'll also tell my ex-"high wizard" friend to add you to his.
you have a St Michael and St Benedict Prayer to return your curses back to whence they came. you also have a Rosary to make your eyes open or Permanently closed. your reign of terror is ended, but you get to choose how.
you are a low-ranking devil worshiper in a front for the singular coven in the world. I’ll bet that you are a child rapist and murderer hiding behind rhetoric and curses. hell was made specifically for you.