It's kind of funny that they tried to limit the Mami spam by making Challenge 20 immune to binds, but instead permitted Alina spam by not making it immune to stuns.
(Also, five Shadow Karins in Challenge 19 was ridiculous, but at least I had a pile of Unwavering Lights to compensate?)
Double New Year's events too... and we can probably assume they'll do double Summer events... This is very much not friendly for the people who want seasonal variants. Between Summer Amanes, Madokami, regular Homura, and so on, it's going to be rough even for the people the Law of Cycles likes if they want to actually get more than one of them.