I am sure it did! For Whale use whatever works!. Raidboss is different too.
As for the mains:
Use your best skill act girls with Kerria, whomever they are. The better they are, the better Kerria is.
The key with her is to get her to use her skill as much as possible. She is suited to the long game. She's harder than hell to kill and deals hellacious damage!
Here is what I am running
all girls have skill act boost.
Cattleya boosts skill damage
Burning Bush and now Iberis add purple and blue weakness.
Maple is filler, waiting to bloom and will be incredible when she does (50% ATK boost to all and will get 1.36 skill activation eventually)
I still like Cactus with Dendro but had to pull her for the time being to make a crit team