In Dark Souls 3, what embers are needed for the transformation of Chaos in Dark Souls 3 can be referred to as follows:
Giant Embers. Giant Embers can be picked up or brushed in the hands of the giants in Anor Londo, at the door of the old devil, and at the Smoke Lake. Only by giving embers to the blacksmith can the blacksmith make qualitative changes to certain weapons. At the same time, only by getting the corresponding embers can the corresponding qualitative changes be used.