Okay, here are the list of attacks I use turn one:
Start with 160 spirit (max 200)
Vyse: Skull Shield (0 dmg from phys attacks and auto counter attack for party, 5 spirit)
Aika: Delta Shield (cancels out all magic attacks targeting party, 4 spirit)
Fina: Lunar Blessing (bestows regen on party, 18 spirit)
Gilder: Aura of Denial (cancels out negative status effects to party, 3 spirit)
Drachma: Spirit Charge (charges party spirit at double his normal charge, charges 40 spirit)
Usagi/SM: Spirit Use Attack (21 Spirit, power: Will--999 target party for 1/4 max damage to single target)
160
-50
+40
___
150
At the beginning of my next turn I charge to 200 (160 charge per turn).
~~EDIT~~
Skull Shield, Delta Shield, Aura of Denial, and Lunar Blessing all auto cast at beginning of the turn and stay put until next round.