Timestamps:
Intro 0:00
Circle XVI 0:06
Circle XVII 5:39
Circle XVIII 10:30
Circle XIX 17:07
Circle XX (Warden of Darkness) 25:12

~~~~~~~~~~~~~~~~~~~~~~~~~~~

So, setup, uh... I don't really think there's anything more efficient than what I've been using forever, even with all these new abilities. At least, scoring is more fun than in Arcade because of the different boons.

Tips:
1) General strategy is to spam Collateral Bonuses, Cumulative Bonuses (Thunderstorms), Gambit Counters, Permafrosts, LB Air Combos and Eikonic Punishments. Wykes lets you be sloppy like me. Going for parries, while nice, isn't at all necessary.
2) Change Ice Age & Scarlet Cyclone for Windup & Heatwave for boss Circles.
3) Absolute MUST Boons are: Score Bonus - Aerial Attack Improvement - Quick Charge - Eikonic Ability Score Bonus - Recast Timer Reduction - Magic Burst Cooldown - Limit Break Potency. You should have BP for a few more though.
4) Priority Enhancements are Boon Duration and Potency (alternate between them), then HP & Defense. Avoid any damage-boosting enhancements and boons (especially Stagger Score Bonus).
5) Be really careful to never miss the Lv III Target Time! Some rounds are pretty tight, especially without any Strength bonuses.

#FF16