Du'umat

What is a Du'umat?
Du'umats are the main antagonists of OI:R/CA. There is an animated cutscene showcasing them and giving a bit of background knowledge on them on Obren's YouTube channel. There is seemingly going to be more information revealed in the 3rd part of the live event probably showcasing a Du'umat bossfight as there is a hidden room below the ToH island where there is a tombstone of some sort and a statue of a Du'umat.