Super fast mob farm for java (160k/390k drops per hour, also a very good xp farm)

Sorry haven't been posting I don't really have an excuse I'm just lazy. World download https://drive.google.com/drive/folders/1d6YBY0htee-9uB1FYq44ANXEuV5gmbjO?usp=sharing My twitch https://www.twitch.tv/thatnarwhalboi tell me in the comments what u want me to design next.