I don't think super box would be a good thing to be honest because one of the funnest things about Brawl Stars that you never know and when are you gonna get a new brawler. The reason they have it in clash is that they have many cards. However in Brawl there are only 28 brawlers. If the super box is added, I would think Brawl Stars would be a bit boring for me. That is just me tho.