Final Bargain

Write or speak a legendary bargain with your demonic patron, a fiend, a doomed mortal, or a place of great sin. Define one impossible boon and one terrible price with the GM. The boon may emulate a Tier 10 Pact effect, create a lasting demonic mark, save a soul, damn a soul, open a patron gate, or reshape a pact-bound region. The bargain can be broken only by Tier 10 pact magic, divine intervention, or a story condition named in the terms.