The team I ran for M achievement was in the end:
Scrooge (celestial & cosmic)
LOL (alchemy & cosmic)
LOL (oracle)
Crimean S (warlord, sustaining & inspiration)
Didn’t change the positions. I’m sure the team would be faster if Crimean began. But it was safe auto farming though.
Addition:
But 1 time the game got stuck, when Crimean used frozen flesh for S ghost. Ghost was frozen permanently and was ghosted. As he couldn’t act and finish his 1 round, the counter never reached zero and he didn’t die.