The mechanics of the stunt are pretty obvious. Increase damage with Effusion: Gambit and Geomancy. Cooperate with your RUN for added skillchain damage. COR is obviously there for buffs and what little main healing might be needed.
I've actually done this with a SAM (obviously not me, I don't play DD jobs) in the past using similar tactics. Of course, it was not this fast and we did have six people.