If your Invoking anything Infernal, you are directly calling on their aid this is a black rite, not to mention it violates the laws of free will. This by any and every tradition is a poorly written and formatted spell. Demons are beings of Evil and destruction and betrayal and should never be used for a binding of any kind, or invoked for any reason. Be warned Christian students of the arcane, even Christians have their version of the rule of 3. Nor is there any proper containment or return of these forces back to where they came. This spell was written by ether 1) a complete novice who merely dabbles and if so is highly dangerous to any trying this. or 2) Someone who is seeking to intentionally cause damage and havoc by using this shoddy piece of work. Abby Wynne is completely correct in her assessment.