[Coldsaturn]

Yes the SHC is definitely end-game content. Players use how many times they've cleared it as curriculum to prove they're a proper battle girlie. As of now I can only get 10 stars out of...36 I believe. The thing that can fuck you up is that every time it resets itself after a week or so you get new stellactrum combos, so based on your cards you might do better one week and worse the next

P.s. I've also played the new chapter and oh my god. You'll need to reach Homecoming Wings, then read all the texts, watch the myths, and only then go for the last chapter. There's too much info that is taken for granted because us players have spent months playing and replaying it.