Beating Metal EX (easily)
7Full Strat
Turn 1:
Use A10 Nitori Skill 1 and 3(Spirit P + Freeze Barrier)(A10 Nitori is used as she has freeze break on all SC on Boost 2) and then 2x Boost SC 1 or 3 on Sanae
Use All of C3 Kogasa's Skills and 1x Boost SC 1(To not kill the no gauge fairy)
Use Skill 2 of C3 Yukari and 2x Boost SC 2(Freeze Break)
(All 1x Graze, The Fairies while do a lot, don't do enough damage to kill and HP isn't important)
Turn 2:
(Sanae is full broken)
A10 Nitori use spread shot
C3 Kogasa either 2x or 3x depending on how much P left LW (Should Gauge Break both Sanae and the Yellow Gauge Fairy)
C3 Yukari 1x Boost LW(In case Kogasa did not Gauge Break which happened the first time
Turn 3:
(All of Sanae's Barriers are Freeze)
A10 Nitori 2x Boost SC 3(Should Full Break assuming no miss)
C3 Kogasa use Spread shot
C3 Yukari spread shot
Graze 1x
(No Insta LW as Sanae takes 0 dmg from the LW)
Turn 4:
_(anae is Full Broken)
C3 Kogasa 3x Boost LW
A10 Nitori switch out to Momoyo, use spread shot
C3 Yukari use spread shot.
Turn 5:
(Sanae has no more gauges)
All use 1x Boost Spread Shot(wait for Skill recovery for extra P)
Turn 6:
All Out. C3 Kogasa LW should finish off