Trails of Cold Steel - Fate Spinner (Nightmare)

I had Rean and Jusis focus on delaying the enemy here, while Rean also helps with heals occasionally. Have Machias break the enemy's guard with his craft while Fie helps out with the damage. I switched up my game style near the end with Jusis buffing ATS with the whole party and decreasing the enemies ADF as well using Jusis's craft. I then had Rean and Fie use artes whenever there wasn't much of a delay in the turn order for them making use of the Zero-Arte buff. Just pay attention to the turn order, if there is a delay then just attack normally or use attack crafts. I also made use of Machia's healing craft, whenever the whole party needs to be healed.