"Welcome to this practice thall challenge: A thralls' challenge is a three round challenge in which a thrall, someone who sold their souls, can challenge the person who owns their soul. By winning one or more challenges you can in essence change your contract. Each challenge unless stated before hand is 10 minutes Winning round one: you can change the terms/specific conditions on your contract. Winning round two: you can change almost everything but the fact your soul is still owned by the other person Winning round three: you can destroy the contract or turn it around on the other person so you own them instead. For example, alastor and husker: Round 1: husker changes some of his terms and conditions Round 2: husker makes it so alastor only owns his soul without anything else from husker, he can no longer command husker Round 3: Husker now owns Alastor and has freedom to do anything.

  Rules of challenge:

1. you can only invoke a thralls' challenge every 5 years.
2. no outside help during the challenges, you can prepare beforehand though
3. Challenger does not chose first challenge, the one challenged does
4. unless otherwise stated, you cannot invoke a thralls' challenge against anyone but the person who owns your soul"

The machine beeps as it powers on to the start screen, "State the name of your contract holder and your name as well."

(Pretend: This is a training simulator for a thrall to prepare to challenge their contract holder. Also the example is what tempted me to make this. I was roleplaying alastor)