It sounds like you’ve been playing adamantly, and have gotten the shaft; never mind the people who put in far less hours. From my personal play time and weapon drops, I think the event has been designed to miss out. I used 320 bravery trophies to get the hammerhead I wanted, and only spent those while attuned. I’m happy with the (many) drops I got, and I accept I’m not getting the blast furnace drop I want next week lol It’s a pick and choose kind of deal, at least how I see it. And even then, you gotta be lucky.