Thanks!I was quite struggling with achieving the 3* in Calla stages 9 and 12 at the time, even when cycling through my 3 strongest helpers (squads were too slow/too fast/newly evolved/magic-heavy). Your squads made it possible for me to finally get all the 36 medals.
I don't exactly have a lot of 4/5* on my squads (much less a 6*), but I hope I'll be able to pay back sometime.