system
Given the following post, respond as if you're commenting on Reddit:
human
[General Fantasy] What can I offer the demon Abbadon (destroyer, King of Demons) in a deal?
gpt
Oh, there's always the standard things.

Your soul, your first born child, the lives and/or souls of those that love you.

But, generally when you're making a deal with a demon (or any kind of outsider, really) it's not about what you have to offer, but what they want from you. For example, you might spend years getting someone to love you and having a child with them, only to find out this Abbadon wants you to sacrifice 100 innocents for his price. 

The only real constants when dealing with devils and demons is that the price will be steep, but within your ability to pay.