I tried a lot of set up for my teams to found the most efficient for the new Aqua shadows. I try to make the ultimate Crit and Counter with the girls availables in my ranks. And then, I used my helper team with 3 random rainbows and I sweeped the whole map in 3 turns.
I'm happy 'cause my helper team is not that bad.
I'm depressed 'cause random rainbow stacking is better than every synergy and team set up with 5*.
Please kill me.

And I still don't know which girl I will take with that 16' stone. And I still have a 15' waiting too.