JOKER NEVER S.E.E.S. IT COMING (HARD) 

Joker first turn kill which is basically a Theurgy dump using:
- Fuuka's Oracle to get full party charge/concentrate
- Aigis, which debilitates first
- Metis, who crits and shifts to Aigis
- Aigis casts Shadow Hound
- Junpei casts Hack n' Blast
- Akihiko casts Electric Onslaught
Needless to say, all personas required need 99St/Ma/Lu, with the exception of Lu for Akihiko. This turn order is important for Junpei to capitalize on the "Down" status damage boost.
With the combination of equipment and skills:
- Aigis gets Pierce Driver/Amp/Boost, Shift Amp/Boost, Single-Target Boost
- Metis gets Strike Amp/Boost, Auto-Rebellion
- Junpei gets Slash Amp/Boost, Auto-Tarukabellion
- Akihiko's is irrelevant.
Heartless is next up. Thanks to ‪@Legendaryyy77‬ , ‪@tuvieeclips‬ and ‪@Ziroikabi‬ for coming up with this.