Demonic Illusion: Forbidden Nightmare

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Name: Demonic Illusion: Forbidden Nightmare/Astaroths Calling
Type: Genjutsu
Rank: A
Description: This jutsu creates an area of complete darkness around the victim, enabling the user to attack without being seen. The ground begins to shift into a gooey substance making movement nearly impossible. The more they struggle, the more the fear builds within the mind making the goo move more faster in a sucking motion. The noise of laughter begins as the user speaks out as if they have become one with Astaroth. In time the victim will end up sufficating themselve or has been known to even stop the heart. 
Jutsu Hand Seals
Ox-->Snake-->Dragon-->Boar-->Ox--Dog-->Snake-->
Jutsu Information
Example: 
*This jutsu require great knowledge of Genjutsu
Specific Users:
Example:
*Only those who are greatly skilled in Genjutsu
Jutsu Cost
Example:
*This jutsu would cost you about 35% of your chakra and increases as the jutsu continues
Jutsu Performance
Example: 
User places hands into the hand seals allowing the Chakra to flow into the middle of the body. Once it has built up the user will take out a kunai and cut their body (most on the arm but the more severe the more effective the jutsu take place) As the blood flows onto the ground the user traces the Sigil of Astaroth onto the ground, it turns black and then follows the sky Speaking the sacred prayer to Astaroth. "Hear me Lord Astaroth, I ask in your name, that the forces of darkness bestow their powers of prophesy upon this gate; to bestow the blessing of prophesy and all the powers related, thereof upon this mirror. All of this, I ask in your name, Lord Astaroth. So it is done.” The room then Floods into darkness.
Jutsu Product
1.      User places hands into hand seals allowing the chakra to flow into the middle of the body. 
Weaknesses
Causes Physically injury to the body.