agreed, drop rate is cancer. I believe it took me 41 wins so that Kotokaze in Kugane(10,10) would drop her 2-star Kotokaze card. Makes no sense at all. Should be maximum 20 wins and you should auto-guarantee one of your missing cards.

Small sample that I had screenshot to share with fc:


Also Kikimo, on the docks of Kugane(8.6, 14), took forever to drop the 4-star Hancock card. Idk, I more commonly get 4- and 5- stars from alliance and similar raids/duties. Just garbage drop rates all around.