Asmodeus gamble

You utter the name of a powerful devil conjuring it in front of you. Time seems to freeze until a deal is made with the devil or the spell is dismissed, and in the meantime you and the devil can communicate telepathically but not move or talk . The devil will fulfill a wish of yours (see wish spell ) but after the completion of your wish, will demand a cost from you, usually in the form of another wish. Inability to pay the cost will mean immediate forfeiture of your soul to the nine hells. It's at dm's discretion to decide what the cost is and how great it will be