In Starbreaker, asura emulators like Morgan Stormrider are designed to kick demon’s asses. They just happen to be good at driving bargains with demons as well.

Something like the following dialogue will probably make its way into Shattered Guardian.

MORGAN
Why couldn’t you have told me a decade ago that you needed me for this?
ISAAC
You would not have believed me. Moreover, I needed you to grow through experience and develop ego-strength through your bonds with others. Will you help me now?
MORGAN
After everything you admitted to doing to me, Naomi, and Chr- Annelise, I should kill you.
ISAAC
You tried that once already, which is how we got here.
MORGAN
I’ll help, but afterward you will all stand trial. The Phoenix Society’s executive council is going down, and you are going to answer for everything you did starting with Nationfall. We all have a right to know the truth about everything, so we can decide whether the Phoenix Society is worth even trying to reform.
ISAAC
So, a Truth and Reconciliation Commission [1]?
MORGAN
No. A public trial before a tribunal by as impartial a jury as can be managed. What you did, what we’re doing—it needs to be documented lest it be forgotten.
ISAAC
Very well. I accept, though I feel like I am the one making a deal with the Devil.
MORGAN
You wanted an Adversary, didn’t you?
[1]Isaac Magnin is referring to the body convened in South Africa in 1996 after the abolition of apartheid.