>Brainless auto Tier
Nuclear winter is the easiest, you don't even need Fox because Shun shreds shields.
Arguably, ill wind is equally easy if you've been playing since launch and got Rin/Ren for free.

>Manual Tier
You can compensate for any weak team in the technician trials with personas, but the ones without a bonus for AoA are pretty unfun.
Thunderous Blessing is quite annoying if you don't have Yui or a Marian, and neither are great pulls. Motoha is a cute tomboy but an awful DPS.

>Shit Tier
One can justify leveling Yumi for a fox team, and even Motoha could theoretically have a place in an electric team, but having to invest in the psy units is painful as fuck. Arcane flame is the absolutely worst, and I would rather spend 100k in consumables bells than level Tomoko