This is still the same strat of using Lightning to charge the summon meter. The only adjustment is giving her Lulu call (base call is enough) to maintain the orb.
Once Terra goes LD the fight is over.
Timestamp
Party setup at 8:55
0:00 Setting Up
Reset until Lightning goes first. Have her take multiple turns to kill the minion and charge the summon meter. Once the minion is dead use Lulu call then complete charging the meter.
Then swap to Garnet, use BT+, AA and summon
3:16 Summon Mode
The goal here is to use Leo LDCA and Cissnei LD to set up, then go LD with Terra. That's it.
LD-Meltdown until you win. Throw in BT+ or BT mode to hasten the fight.
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